Explain the notation : \(^{19}_9F\) – InterviewSolution

1.	Explain the notation : \(^{19}_9F\)
Answer» F is the symbol of element (Fluorine). 9 is the atomic number. 19 is the mass number. Hence fluorine has 9 protons and (19 – 9 = 10) 10 neutrons in its nucleus. 9 electrons are revolving around the nucleus.

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