Answer:
C.
Explanation:
A. C - 6 electrons - 1s2 2s2 2p2
B. O - 8 electrons - 1s2 2s2 2p4
C. N - 7 electrons - 1s2 2s2 2p3
D. Be - 4 electrons - 1s2 2s2
Answer: Lanthanide or Lanthanides
Explanation: Sorry that I don’t have an explanation. I just answered the question correctly myself. <33
Answer:
C. The rate of the reaction begins to decrease as the reactants are used.
Explanation:
a p 3 x
The force of the swing.
Hoped I helped, and please tell me if I am wrong.