Explain Science

Periodic Table of Elements

The periodic table of elements is a tabular representation of all known chemical elements, arranged in order of increasing atomic number. Elements are categorized according to their electron configuration, with groups sharing the same number of valence electrons and exhibiting similar properties. The periodic trends, such as electronegativity, atomic radius, and ionization energy, can be explained using this organization.

  • Actinium is a rare earth metal that is radioactive and has various important uses in the field of nuclear science and medicine.
  • Americium is a man-made element that can be used in smoke detectors and nuclear reactors. Its isotopes can produce harmful radiation, making it important to handle it with caution.
  • An explanation of the chemical element antimony, including its properties, uses, and history.
  • A summary of what arsenic is, where it can be found, why it is dangerous, and how to protect oneself from exposure.
  • Astatine is a rare and highly radioactive element in the halogen group. It is typically a black, solid substance and is the rarest naturally occurring element on Earth. Astatine was first discovered in the late 1800s and has since been used in a variety of scientific experiments.
  • A summary of the chemical element Barium, its properties, and uses.
  • Berkelium is a synthetic, radioactive element with the symbol Bk and atomic number 97.
  • Beryllium is a chemical element with atomic number 4 and symbol Be. It is a hard, greyish-white metal that is very lightweight and has a high melting point. Beryllium is used in a variety of industries, but can pose health hazards if not handled properly.
  • An explanation of bismuth and its properties.
  • Bohrium is a synthetic chemical element with the symbol Bh and atomic number 107. It is a member of the group 7 elements. This post explains Bohrium in simple terms for a 5-year-old, a 13-year-old, and an adult.
  • Boron is a chemical element with the symbol B and atomic number 5. It is a metalloid that is commonly used in many industrial applications, including the production of borosilicate glass, as a dopant in semiconductors, and as a neutron absorber in nuclear reactors.
  • Learn about the chemical element Bromine, commonly used in flame retardants and photography.
  • Cadmium is a heavy metal that is toxic to humans and animals. It is used in a variety of industries, but mining and battery production are the major sources of cadmium pollution. Exposure to cadmium can cause serious health effects such as lung and prostate cancer, kidney damage, and bone loss.
  • An explanation of the chemical element calcium, its properties, and its role in biology.
  • Californium is a radioactive chemical element that has various commercial and research applications. This post explains what Californium is and how it is used.
  • An explanation of the element carbon and its importance in various fields of science such as chemistry, biology, astrophysics, and more.
  • Cerium is a chemical element with symbol Ce and atomic number 58. It is a soft, silvery, ductile metal that easily oxidizes in air.
  • An explanation of the chemical element cesium, its properties, and uses.
  • Understanding the element Chlorine and its properties.
  • Chromium is a chemical element with the symbol Cr and atomic number 24. It is a hard, gray metal that is highly valued for its strength and corrosion resistance. Chromium is commonly used in stainless steel, aerospace alloys, and chemical compounds.
  • An explanation of the element cobalt, its properties, and its uses.
  • Copernicium is a synthetic chemical element with the symbol Cn and atomic number 112.
  • An introduction to the element Copper and its properties.
  • This article explains the chemical element Curium and its properties and uses.
  • This post explains what darmstadtium is, its characteristics, and how it was synthesized.
  • Dubnium is a radioactive chemical element with the symbol Db and atomic number 105.
  • Dysprosium is a rare earth element with symbol Dy and atomic number 66.
  • An explanation of the element Einsteinium and its properties.
  • Erbium is a rare earth element with the atomic number 68.
  • Europium is a chemical element that is part of the lanthanide series. It is a rare earth metal that is used in various applications such as fluorescent lamps, nuclear reactors, and MRI machines.
  • Fermium is a synthetic element with the symbol Fm. It is both radioactive and unstable, and is primarily used in scientific research.
  • Flerovium is a synthetic element with atomic number 114. It was first synthesized in 1998 by a team of Russian and American scientists.
  • An explanation of the chemical element Fluorine and its properties.
  • Francium is a highly reactive metal that is part of the alkali metal group on the periodic table. It has the potential to be used in various medical and technological applications.
  • An explanation of the element gadolinium and its use in magnetic resonance imaging (MRI).
  • Gallium is a chemical element with the symbol Ga and atomic number 31. It is a soft, silvery metal that is liquid at room temperature and has a low melting point, which makes it useful in some applications.
  • A summary of the chemical element Germanium, its properties, and uses.
  • An introduction to the element gold, discussing its properties, history, and uses in modern society.
  • Hafnium is a chemical element with the symbol Hf and atomic number 72. It is a lustrous, silvery-gray transition metal commonly used in nuclear reactors and as an alloy with titanium.
  • Hassium is a synthetic element with the atomic number 108. In this post, we will explore its discovery, properties, and potential uses.
  • Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert monatomic gas that heads the noble gas group in the periodic table.
  • Holmium is a metallic element that belongs to the lanthanide series. It has a silvery-white metallic appearance and is highly magnetic. It has various industrial applications.
  • Hydrogen is a chemical element with the symbol H and atomic number 1. It is a colorless, odorless, tasteless, non-toxic, nonmetallic, highly combustible diatomic gas.
  • An explanation of the element Indium and its properties.
  • This article explains what iodine is, where it is found and its various uses.
  • An introduction to the element Iridium and its properties.
  • Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal that is commonly used in construction, manufacturing, and medicine.
  • A description of the element Krypton and its various properties.
  • Lanthanum is a chemical element with the symbol La and atomic number 57. It is a silvery-white, soft, ductile metal that is very reactive and corrodes rapidly when exposed to air.
  • Lawrencium is a synthetic, radioactive element that has only been produced in small quantities. It is a member of the actinide series and its properties are not fully understood due to its short half-life.
  • An expert explanation of lead, its properties, uses, and effects on human health.
  • Lithium is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal that belongs to the group of the lightest chemical elements. It is used in various industries, including batteries, ceramics, glasses, and medicine.
  • Livermorium is a synthetic element that was first created in a laboratory in 2000. It is highly unstable and only exists for a fraction of a second before decaying into other elements.
  • Lutetium is a chemical element with the symbol Lu and atomic number 71. It is a rare earth metal, and it is the last element in the lanthanide series.
  • An explanation of the element magnesium and its properties.
  • An explanation of the element Manganese and its importance in biology and industry.
  • Meitnerium is a synthetic element that was first synthesized in 1982. It is highly radioactive and only a few atoms of it have ever been produced. Meitnerium is part of the group of elements known as transactinide elements and has an atomic number of 109.
  • Mendelevium is a rare and highly radioactive element named after Dmitry Mendeleev, the father of the periodic table. It has no known uses outside of scientific research.
  • A summary of the element Molybdenum and its characteristics.
  • Moscovium is a highly unstable, synthetic element with the symbol Mc and atomic number 115.
  • Neodymium is a chemical element with the symbol Nd and atomic number 60. It is a rare earth metal and belongs to the lanthanide series. Neodymium is used to create strong permanent magnets and is found in various technological devices.
  • Learn about the element neon, its properties, and its uses.
  • A summary of the properties and applications of the chemical element nickel.
  • Nihonium is a synthetic element with the symbol Nh and atomic number 113. It is the first element to be discovered and named by a research group from Asia.
  • A summary of the properties, uses and interesting facts surrounding niobium.
  • An explanation of the element nitrogen, its properties, and its importance.
  • Nobelium is a synthetic element and is a member of the actinide series. It is highly radioactive and has no known biological role. It was first synthesized in 1966 by bombarding curium-248 with carbon ions.
  • Oganesson is a synthetic element with the symbol Og and atomic number 118. It is a member of the noble gas group in the periodic table, making it chemically inert.
  • Osmium is a chemical element with the symbol Os and atomic number 76. It is a very dense, hard, and brittle metal with a bluish-white color and is used in alloys, electrical contacts, and fountain pen tips. This post explains Osmium for 5-year-olds, 13-year-olds, and adults.
  • Oxygen is a gas that is essential for life on Earth. In this post, we will explore what oxygen is, how it is used, and its importance to living organisms.
  • Palladium is a chemical element that belongs to the platinum group metals and has numerous important applications in various fields.
  • An explanation of the chemical element phosphorus, including its properties, uses, and importance to living organisms.
  • Learn about the element Platinum, its properties, and historical significance.
  • Plutonium is a highly radioactive, silvery metal of the actinide series that can be used as a fuel for nuclear reactors or in nuclear weapons.
  • An introduction to Polonium, its properties, and uses.
  • An explanation of the element potassium, its properties, and importance in the body.
  • Praseodymium is an element on the periodic table with atomic number 59 and symbol Pr. In this article, we will discuss what praseodymium is, its properties, and its uses.
  • Promethium is a rare earth element often used in nuclear batteries and portable X-ray machines.
  • Protactinium is a radioactive chemical element with the symbol Pa and atomic number 91. It is a dense, silvery-gray metal that readily reacts with oxygen, water vapor, and inorganic acids.
  • Learn about the chemical element Radium, its properties, uses, and potential dangers.
  • An explanation of the science behind the radioactive gas, radon.
  • An introduction to the chemical element Rhenium, its properties, and uses.
  • Rhodium is a chemical element with the symbol Rh and atomic number 45. It is a rare, silvery-white, hard, and chemically inert transition metal. This post explains Rhodium for different age groups.
  • Roentgenium is a synthetic chemical element with the symbol Rg and atomic number 111.
  • Rubidium is a chemical element with the symbol Rb and atomic number 37. It is a highly reactive metal in group 1 of the periodic table. In nature, it can be found in trace amounts in minerals such as lepidolite, pollucite, and carnallite. It has a variety of applications in fields such as electronics, physics, and medicine.
  • Ruthenium is a chemical element with the symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Ruthenium is a hard, silvery-white metal that has well-known chemical properties and is widely used in various industries.
  • Rutherfordium is a chemical element with the symbol Rf and atomic number 104. It is a member of the transactinide elements and is named after physicist Ernest Rutherford.
  • Samarium is a chemical element with the symbol Sm and atomic number 62. It belongs to the lanthanide series and is a rare earth element.
  • Scandium is a chemical element with the symbol Sc and atomic number 21. It is a silvery-white, lightweight metal that has a variety of uses in industries such as aerospace, electronics, and sports equipment.
  • Seaborgium is a synthetic chemical element that has only been produced in laboratories. It was named after chemist Glenn T. Seaborg and is currently used in scientific research.
  • Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. It rarely occurs in its elemental state in nature or as pure ore compounds.
  • An explanation of the element silicon and its uses in technology.
  • An explanation of the chemical element silver, including its properties, uses, and historical significance.
  • Learn about Sodium, its properties, and its role in everyday life.
  • Stoichiometry is a branch of chemistry that deals with the calculation of the amounts of reactants and products in chemical reactions.
  • This article explains the chemical element Strontium, its properties, and applications.
  • An explanation of the chemical element sulfur, its properties, and its uses.
  • Tantalum is a rare, hard, blue-gray metallic element that is used in electronic components.
  • Technetium is a chemical element with the symbol Tc and atomic number 43. It is the lightest element whose isotopes are all radioactive, and the first element that was artificially produced.
  • Learn about the element Tellurium, its properties, and applications.
  • Tennessine is a synthetic element with the atomic number 117 and symbol Ts. It is a member of the halogen group and is the second-heaviest known element.
  • Terbium is a chemical element with the symbol Tb and atomic number 65. It is a silvery-white rare earth metal that is malleable, ductile, and soft. Terbium is used in green phosphors in fluorescent lamps and as a dopant in solid-state devices. It is classified as a lanthanide and is located in period 6 of the periodic table.
  • An explanation of the radioactive element thorium and its properties.
  • An explanation of Thulium, a rare earth metal used in various industries.
  • An explanation of the metal element Titanium and its properties.
  • An explanation of the chemical element Tungsten.
  • Uranium is a chemical element with the symbol U. It is a naturally occurring element that is commonly used in nuclear power plants. This post explains uranium for 5-year-olds, 13-year-olds, and adults.
  • Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, ductile, and malleable transition metal. Vanadium is found in small quantities in nature and is primarily used in steel and alloys due to its high strength and resistance to corrosion. It also has potential applications in energy storage, such as in rechargeable batteries.
  • Xenon is a chemical element with the symbol Xe and atomic number 54. It is a colorless, odorless, and dense gas that is found in trace amounts in the atmosphere.
  • Ytterbium is a rare-earth element with various practical applications in technology and science. Its atomic number is 70, and it is a soft, silvery-white metal that is relatively stable in air and water. Ytterbium is named after a village in Sweden, Ytterby, where several rare-earth minerals were discovered.
  • Yttrium is a chemical element with the symbol Y and atomic number 39. It's a silvery transition metal that is often used as a component in alloys and can be found in minerals such as gadolinite and xenotime.
  • This article explains the properties, uses, and health benefits of Zinc.
  • An explanation of the properties and uses of zirconium for different age groups.