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9s - 9
21 5s
In a neutral zinc atom, there are 2 electrons in the 4d orbital and 2 electrons in the 4s orbital. Therefore, there are no 5s electrons in a zinc atom.
There is really not a big difference between the iPhone 5s and the iPhone 4s. The only thing different between the phones would be the screen size.
how many 4s go in 16
The 5s orbital has a lower energy level than the 4d or 4f orbitals in a rubidium atom, according to the aufbau principle. Electrons fill orbitals starting from the lowest energy level to the highest energy level. This is why the electron fills the 5s orbital before the 4d or 4f orbitals in a rubidium atom.
20 4s go into 80.
105 of them.
35 of them.
103.4
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Exactly 200 of them