Isotopes are atoms that have the same number of _______________________, but different numbers of __________________

Which weighs the most?

What is the formula mass of CaCO3?

The group 8A elements, AKA nobel gases, are…

The charge on the silver ion in the salt AgCl  is ________.

2Ca + O2 → 2CaO   How many grams of CaO are produced when 64 grams of oxygen reacts completely with calcium?

The representative elements are also known as the _______________ (A/B) group elements.   The transition metals are also known as the _______________ (A/B) group elements.   

The farther away an energy level is from the nucleus, the _________ the energy of an electron in that level. (lower or higher) 

Classify each of the following as an element, compound, or mixture

Whats is the maximum number of electrons permitted in each of the following energy levels;   2nd energy level, ___ 5th  energy level, ___