Chemistry
An element 'A' has mass number 23 and atomic number 11. State the —
(i) no. of neutrons in it's shell,
(ii) electronic configuration of the element 'A'.
Atomic Structure
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Answer
Given, mass number 23 and atomic number 11. So, Protons (P) = 11 and
(i) Neutrons (n) = A - P = 23 - 11 = 12
(ii) As number of electrons (e) = 11
∴ Electronic configuration of A = 2, 8, 1
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