When atoms react chemically they gain, lose, or share _____.Group of answer choicesneutronselectronsprotonsatomic weights

Two atoms with the same atomic number but different atomic weights are called _____.Group of answer choicesisotopesmoleculesradioactiveelements

Identify the reason why atoms lose, gain or share electrons in a chemical reaction.

Non-metals tend to react to form?*1 pointCationsAnionsElectronsNeutrons

If a chemical reaction requires an input of energy in order for it to occur, then the reaction is _____.Group of answer choicesendergonicexergonicNext

When atoms gain electrons they form a negative ion called an _______. Group of answer choicescationanionbunionvalence ion