Question

write the electronic configuration of first five elements form periodic table ​

Answer 1

Answer:

Element:Helium (2) Electronic configuration is 1s2 (1s power 2)

Element:Lithium (3) Electronic configuration is 2s1(2s power 1)

Element:Beryllium (4) Electronic configuration is 2s2(2s power 2)

Element:Boron (5) Electronic configuration is 2s2 2p1(2s power 2and 2p power1).

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