Mendaleev organized elements according to what?

Why did Mendeleev leave gaps in his model of the periodic table?

What is an atom?

What particles are in an atom (subatomic particles)?

Which subatomic particle has the smallest mass?

Where is most of the atom's mass found?

What is the mass number?

What is the atomic number?

What is relative atomic mass

What makes an Isotope

What is an electron configuration

What is an Ion

What is a Cation

What is an Anion

What happens in Ionic Bonding

What is the ideal number of electrons in the outer shell?

Na2O means what

What is a lattice structure

Ionic Compounds usually end in what?

What are lattices held together by

What determines solubility?

A salt is created how?

What is a precipitation reaction

What does (aq) stand for