The number of electrons plus neutrons in ^40_19K^{+} is

KVPY SA Exam 2012 Question Paper

Question : 33 of 80

Marks: +1, -0

The number of electrons plus neutrons in

^40_19K^{+}

Solution:

^40_19K^{+}

Neutrons = 21, Electron = 18,
21 + 18 = 39

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