Awooden block has a length of 4.0 cm, a width of 2.0 cm, and a height of 1.0 cm. what is the volume of this block?

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Can someone me with questions 12 and 13 plz.

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!