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An atom of an element contains 29 electrons and 35 neutrons. Deduce (i) the number of protons and the (ii) the electronic configuration of the element.

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No. of electrons in the atom of an element = 29

No. of neutrons in the atom of an element = 35

(i) Number of protons = 29

(ii) Electronic configuration (At. no = 29)

= 1s2 2s2 2p6 3s2 3p6 3d10 4s1.

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