Determine the group and period by ending electron configuration: 4s2

What is the mass of each element in a 324.8 sample of co2

Give the orbital configuration of the phosphorus (p) atom.

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.