The energy required to remove one electron fr | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The energy required to remove the first electron from a helium atom $(He)$ is given as $E_1 = 24.6 \, eV$.After the first electron is removed,the

Vedclass · Accepted Answer

$79$

Vedclass · Answer

(A) The energy required to remove the first electron from a helium atom $(He)$ is given as $E_1 = 24.6 \, eV$.After the first electron is removed,the remaining species is a $He^+$ ion,which is a hydrogen-like system with atomic number $Z = 2$.The energy required to remove the second electron from the ground state of $He^+$ is given by the formula $E_n = 13.6 	imes Z^2 \, eV$.For $He^+$,$Z = 2$,so $E_2 = 13.6 	imes (2)^2 = 13.6 	imes 4 = 54.4 \, eV$.The total energy required to remove both electrons is the sum of the energy required for the first and second ionization: $E_{total} = E_1 + E_2 = 24.6 \, eV + 54.4 \, eV = 79 \, eV$.

The energy required to remove one electron from a helium atom is $24.6 \, eV$. What is the energy required to remove both electrons from the helium atom (in $, eV$)?

Similar Questions

$A$ stationary hydrogen atom emits a photon corresponding to the first line of the Lyman series. The recoil velocity of the atom is nearly (in $m/s$)

$A$ neon sign does not produce

Band spectrum is produced by

The colour of the positive column in a gas discharge tube depends on

An electron of a stationary Hydrogen atom transitions from the fifth energy level to the ground level. The velocity that the atom acquires as a result of photon emission is ( $m=$ mass of the atom,$R=$ Rydberg's constant,$h=$ Planck's constant).

Vedclass Test Series

Exam Paper Generator

Online Exam Module