# How many electrons can fill the 4th Shell?

## How many electrons can fill the 4th Shell?

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How many electrons are in 4s?

Maximum number of electron in an energy level (2n2)

Which element would end with 2 electrons in the 4s orbital?

scandium atom

### What element is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1?

So, an antimony atom with charge +2 has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p1.

Why is s more stable than P?

s orbitals are closer to the nucleus than p orbitals are. So electrons that are in s orbitals will be closer to the nucleus than electrons in p orbitals ” and therefore, lower in energy (“opposite charges attract”).

Are higher orbitals more stable?

Energy-Level Diagrams A bonding molecular orbital is always lower in energy (more stable) than the component atomic orbitals, whereas an antibonding molecular orbital is always higher in energy (less stable).

The electrons in the s-orbital have maximum probability of being found near the nucleus and this probability goes on decreasing in case of p,d and f orbitals. For example 5f orbital has poor shielding effect than 4f orbital. This is because 5f orbitals are farther from nucleus as compared to the 4f orbitals.

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