$($a$)$ What is the minimum energy $($in electron volts$)$ that is required to remove the electron from the ground state of a singly ionized helium atom $($He$,+Z=2?($b$)$ What is the ionization energy for $H{e}^{+}?$

$($a$)$ Number $$ Units $$

$($b$)$ Number $$ Units $$

$($a$)$ What is the minimum energy $($in electron volts$)$ that is required to remove the electron from the ground state of a singly ionized helium atom $($He$,+Z=2?($b$)$ What is the ionization energy for $H{e}^{+}?$

$($a$)$ Number $$ Units $$

$($b$)$ Number $$ Units $$