Question 2 (5 points) (05.01 LC
One mole of zinc has a mass of 65.4 grams. Approximately how many atoms of zinc are present in one mole of zinc? (5 points)
a
32 x 1023 atoms
Ob
6x 1023 atoms
Ос
66 atoms
Od
65 atoms

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The answer is celsius 

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.