EASY 30 POINTS! PLS HELP ME T-T 1. True or false? All atoms in an element contain an identical number of neutrons.

2. An atom with a charge has the same number of protons and electrons.

3. An atom that has a different number of electrons and protons is called a(n) .

4al + 3o2 → 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.