The element hydrogen has three different isotopes: protium, deuterium, and tritium. Each isotope has one proton but different numbers of neutrons. A protium nucleus has zero neutrons, a deuterium nucleus has one neutron and a tritium nucleus has two neutrons.
Protium is by far the most common isotope, with over 99 percent of all the hydrogen in the atmosphere being protium. Deuterium is the second most common. It is used as part of deuterium oxide in nuclear reactors. Tritium is the only radioactive isotope of hydrogen, and it is produced by nuclear reactors, as well as being part of the hydrogen bomb.Learn More
A metallic bond forms when the valence electrons are not associated with a particular atom or ion. Instead, they exist as a "cloud" of electrons around the ion centers.Full Answer >
The total number of atoms in a molecule of sucrose is 45. This total is calculated by adding the number of atoms noted in its molecular formula, C12H22O11.Full Answer >
Three scientists independently discovered the element boron in 1808: Sir Humphrey Davy in London and Joseph Gay-Lussac and L. J. Thénard in Paris. Davy produced boron by combining potassium and boric acid in a chamber filled with hydrogen, while the French chemists combined boric acid with magnesium to similar effect.Full Answer >
Positively charged atomic particles are called protons. These particles, along with neutrons, exist in the nucleus of the atom. Protons and neutrons each have an atomic mass of one.Full Answer >