Answer:
Explanation:
If an atom has 13 electrons then it belongs to p-block of periodic table.
s level can accommodate 2 electrons.
p level can accommodate 6 electrons.
13 means 1s2 2s2 2p6 3s2 3p1.
As you can see there totally 5 sub-shells.
Total number of shells are 3(1,2,3).
I believe the answer is C
Answer:
it would be like 30
Explanation:
just divide the gram by cubic
I believe it is b. you only want to change one thing at a time so you know which one thing caused the effect
