At STP, 1 mol = 22.4
1 mol = 6.022 X 10^ 23
so your answer is right it is B 6.022 X 10^ 23
No the maximum number of electrons for "4p" is 6 so there can't be a 4p7
I think the correct answer would be hydrogenous sediment. These sediments are produced when minerals that are dissolved solidify via reaction with water, especially seawater. Other examples are evaporites and oolites. Hope this answers the question.
Answer:
variable: not consistent or having a fixed pattern; liable to change.
Explanation:
