Question

The ratio of total acceleration of the electron in singly ionized helium atom and hydrogen atom according to bohr model (both in ground state) is

• A. $1$
• B. $8$
• C. $4$
• D. $16$

Answer 1

The correct option is B $8$

We have: $a\propto Z^3$
where, $a$ is acceleration and $Z$ is atomic number
The ratio of total acceleration of the electron in singly ionized helium atom and hydrogen atom is given by:
$\frac{a_{He}}{a_H}=(\frac{2}{1}{)}^3=8$