Question

the electronic configuration of an atom which has 17 electrons in it​

Answer 1

If the atomic number is 17, there must be 17 protons and 17 electrons. Starting from the lowest level, we add electrons to each higher level until we have reached 17 electrons. The electron configuration becomes 1s22s22p63s23p5

Answer 2

Answer:

If the atomic number is 17, there must be 17 protons and 17 electrons. Starting from the lowest level, we add electrons to each higher level until we have reached 17 electrons.

The electronic configuration is 1s

2s^2 2p^6 3s^3 3p^5