Choose the correct answer II — task. Science State Board, Class 9.

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1. Th e number of protons, neutrons and electrons present respectively in \(_{35}\textrm{Br}^{80}\)

\(35\), \(35\), \(80\)
\(80\), \(80\), \(35\)
\(35\), \(50\), \(80\)
\(35\), \(45\), \(35\)

2. The correct electronic configuration of potassium is

\(2,8,8,3\)
\(2,8,1\)
\(2,8,8,1\)
\(2,8,9\)

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