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Q: How many 7s are in 210?

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210 ÷ 7 = 30

5.28751 7s equals 37.

There is one 7s orbital with two sub-orbitals: 7s(+1/2) and 7s(-1/2) . A picture of this 7s orbital is in 'Related links'

The prime factorisation of 210 is 2*3*5*7.Therefore all factors of 210 are 2p*3q*5r*7s where each of p, q, r and s can be 0 or 1.

8

80.

18

5

14

10

6

answer:4

Two electrons (each with opposite spins) in the '7s orbital'

18/7

4

10

5

3

100

14

13

11 r3

2 electrons

There are: 777/7 = 111

7, remainder 2