To find S, the number of shared
- electrons, recall that
S = N-A
What is S for silicon
tetrachloride, SiCl4?

Why are the trends and exceptions to the trends in ionization energy observed?

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!

Areaction in which products can react to re-form reactants is