first energy level:1s2=2 electrons
2nd energy level:2s2 2p6=8 electrons
<em><u>3rd energy level 3s2 3p6=8 electrons</u></em>
Answer:

Huh? You have already given the answer.......Anyways, the attached picture is an example for a stratus cloud ☁️.
Chromosome linked together in the human body
Answer:
nucleosomes = 1.65 x 10^6
H2a = 3.3 x 10^6 molecules
H2b = 3.3 x 10^6 molecules
H3 = 3.3 x 10^6 molecules
H4 = 3.3 x 10^6 molecules
Explanation:
It was mentioned in the book Principles of Genetics By D. Peter Snustad, Michael J. Simmons that in the nucleus of <em>D. melanogaster </em>there will be 1.65 x 10^6 nucleosomes and 3.3 x 10^6 molecules of every type of histone i.e. H2a, H2b, H3, and H4 present in it.