Answer:
[Ar] 3d10 4s2 4p4
Explanation:
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p4
It is the horizon layer
~Hope this helps~
Answer:
18.5 years
Explanation:
(6 x 10^23)/(10^15 x 1.03 x 3600 x 24 x 365)
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H₂ = 2 g/mol
1 x 2 = 2 g of H₂
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K = 39.09 g/mol
2 x 39.09 = 78.18 g of K
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Mg = 24.3 g/mol
3 x 24.3 = 72.9 g of Mg
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He = 4 g/mol
4 x 4 = 16 g of He
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Order : K , Mg , He and H₂
hope this helps!
