An element is isobaric with the inert gas atom `._(18)A^(40)`. The electronic arrangement of the element is `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(2) 4s^(2)`. How many neutrons does each atom of the element carry in its nucleus?A. 22B. 20C. 18D. 16

An element is isobaric with the inert gas atom `._(18)A^(40)`. The ele

1.	An element is isobaric with the inert gas atom `._(18)A^(40)`. The electronic arrangement of the element is `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(2) 4s^(2)`. How many neutrons does each atom of the element carry in its nucleus?A. 22B. 20C. 18D. 16
Answer» Correct Answer - B Atomic number of inert gas atom = 20 Atomic mass of inert gas atom = 40 (isobaric to `Ar^(40)`) `:.` Number of neutrons = 40 - 20 = 20

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An element is isobaric with the inert gas atom `._(18)A^(40)`. The electronic arrangement of the element is `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(2) 4s^(2)`. How many neutrons does each atom of the element carry in its nucleus?A. 22B. 20C. 18D. 16

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