RRB Paramedical Staff Nurse Model Paper 6

Question : 96 of 100

Marks: +1, -0

The ratio between radii of

He^{+}

ion and H atom is

Solution:

Value of Z for hydrogen = 1
Value of Z for helium = 2
Value of n for both is = 1

r_{H}=\;{0.5 × 1^{2}}/{1} r_{\He^{+}}=\;{0.52 × 1^{2}}/{1}

\;{r_{H}}/{r_{H e^{+}}}=1: 1

r_{H e^{+}}: r_{H}=1: 1

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