The element cobalt has an atomic number of 27 and atomic weight of 58.933195. The density of the element cobalt is 8.86 grams per cubic centimeter. More » Science Chemistry Atoms & Molecules

The chemical symbol for cobalt (II) iodide, or cobaltous iodide, is written as CoI2. Co is the chemical symbol for cobalt, and I is the chemical symbol for iodine. More » Science Chemistry Atoms & Molecules

Cobalt glass insulators, paint pigment, drills, milling bits and steel alloy are all products made with cobalt. Cobalt steel is tough, strong and heat-resistant enough to be made into parts for jet engines and propellers... More »

To calculate the molecular weight of diethyl ether, determine the molecular formula, find the atomic weight of each atom, multiply the atomic weight the atom by the number of atoms of the element in the molecular formula... More » Science Chemistry Atoms & Molecules

An atom of zinc has an atomic weight of 65.38 atomic mass units, and it has 30 protons and 35 neutrons. Each atomic mass unit is equivalent to 1/12 of the mass of a carbon-12 atom. More »

Krypton is a noble gas with an atomic number of 36 and a standard atomic weight of 83.79. Other chemical properties of Krypton include a heat of fusion of 1.63 kilojoules per mole. More »

To draw a Bohr model of an atom, first find the number of protons, neutrons and electrons in the atom from its atomic weight and atomic number. After that, place the neutrons and the protons in the nucleus, and draw the ... More »