The answer of this question is A
False: I believe if two atoms are in the same group it would not mean they have the same number of electron shells BUT it would mean that if the two atoms are in the same group they would have the same number of valence electrons.
Hoped this helped :)
Answer:
c or d I think but I'm not completely shure
The answer is C. Hydrogen Bond
Answer:
5.06 half lives
Explanation:
1/2 ^n = .03 (.03 is 3% in decimal)
log both sides
n log 1/2 = log .03
n = 5.06 half lives