Question

write the group and period numbers of the element having electron configuration 1s 2s 2p 3s 3p?
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Answer 1

Explanation:

The order of the electron orbital energy levels, starting from least to greatest, is as follows: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p. Since electrons all have the same charge, they stay as far away as possible because of repulsion. ... For example, the 2p shell has three p orbitals