What is a proton? Find out the proton definition, along with the mass of a proton and a proton's charge. Also, learn where we can find protons in...

Learn the three isotopes of hydrogen. Learn the number of protons and neutrons in each of the isotopes of Hydrogen along with their atomic and mass numbers.

Learn how to count protons and electrons in ions, and see examples that walk through sample problems step-by-step for you to improve your chemistry knowledge and skills.

In a neutral atom, the number of protons and electrons are equal. In a positively charged ion, also called a cation, the number of protons is greater than the number of electrons.

Their number of protons make them a unique type of element. For example, oxygen atoms have 8 protons, hydrogen atoms only have 1, and gold atoms have 79. This number is like the identity of an ...

Learn about the lithium, which is the Li element on the periodic table. Understand the lithium atom, the process of lithium mining, and see uses...

Cations have more protons than electrons, which causes the overall positive charge on the atom. If an atom gains an electron, the ion is called an anion due to the overall negative charge on the atom.

Explore atoms. Learn the definition of an atom and understand its structure with diagrams and explanations. See atom examples and find the elements...

What is Atomic Mass? See atomic mass examples, learn the atomic mass definition, how to find the atomic mass of an atom, and the importance of atomic mass.

Learn how to count protons and electrons in atoms and ions and see examples that walk through sample problems step-by-step for you to improve your chemistry knowledge and skills.