More cards in this set

What charge does an electron have?

What is the atomic number of an element equal to?

What is the mass number?

What are shells?

Where are the electrons in the lowest energy level?

What do different elements form when combined?

What is formed when a metal reacts with a non metal?

What does the formula of a molecule show?

What does the formula of an ionic compound show?

What happens to atoms in chemical reactions?