Question

Write down the electronic configuration of the following:
(a) X mass no.27 and atomic no. 13
(b) 35 massno. and 17 atomic no. of Y

Write down the number of electrons in X and neutrons
in Y.​

Answer 1

a》electrons=13{2,8,3 or 1s2 2s2 2p6 3s2 3p1}

b》18 neutrons (35-17){2,8,7 or 1s2 2s2 2p6 3s2 3p5}

Answer 2

Answer:

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