If energy required to remove one of the two electrons from He atom is 29.5 eV, then what is the value of energy required to convert a helium atom into α-particle?

Question

If energy required to remove one of the two electrons from He atom is 29.5 eV, then what is the value of energy required to convert a helium atom into α-particle? (A) 54.4 eV (B) 83.9 eV (C) 29.5 eV (D) 24.9 eV

Tardigrade Admin · Accepted Answer

Energy needed to convert He +ion to He 2+ is =E0 Z2 =13.6 × 4 Hence total energy to create alpha particle of out of helium atom is E text total =13.6 × 4+29.5 =83.9 eV

Q. If energy required to remove one of the two electrons from $He$ atom is $29.5 e V$ , then what is the value of energy required to convert a helium atom into $α$ -particle?

54.4 eV

83.9 eV

29.5 eV

24.9 eV

Energy needed to convert $H e^{+}$ ion to $H e^{2 +}$ is $= E_{0} Z^{2}$
$= 13.6 \times 4$
Hence total energy to create alpha particle of out of helium atom is
$E_{total} = 13.6 \times 4 + 29.5$
$= 83.9 e V$

Q. If energy required to remove one of the two electrons from He atom is 29.5eV, then what is the value of energy required to convert a helium atom into α-particle?