Answer asap! will mark brainliest: according to its periodic table entry, how many electrons does nickel have in its valence level? a.) 2 b.) 8 c.) 16 d.) 28

Option A= 2

Atomic Number of Nickel (Ni) = 28

Electronic configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d8

By definition, the highest principle quantum number is the valence shell. In the case of Nickel, n = 4 is the highest QN and contains 2 electrons (max allowed) in the s-orbital.

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2