The electrons available to be lost, gained or shared when atoms form compounds are called

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

Based on the equation and the information in the table, what is the enthalpy of the reaction?

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5