Calculate the atomic number of an element whose mass number is 39 and – InterviewSolution

InterviewSolution

1.	Calculate the atomic number of an element whose mass number is 39 and number of neutrons is 20 . Also find the name of the element.
Answer» SOLUTION :Mass Number = Atomic number + Number of NEUTRONS Atomic Number = mass number - Number of neutrons `= 39 - 20` Atomic Number = 19 ELEMENT having atomic number 19 is Potassium (K)

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