The removal of an electron from which gaseous atom requires the greatest amount of energy?

Which electronic transition in a hydrogen atom releases the greatest amount of energy?

Which electronic transition in a hydrogen atom releases the greatest amount of energy?

Which of the following electron transitions in a hydrogen atom will require the largest amount of energy?

Which of the following electron transitions in a hydrogen atom will require the largest amount of energy?

Which of the following electron transitions in a hydrogen atom will require the largest amount of energy?

Which of the following electron transitions will require the largest amount of energy in a hydrogen atom?

The energy required to remove an electron from a gaseous atom from its ground state is called

The energy required to remove an electron from an isolated gaseous atom in its ground state is called ionisation enthalpy.From the following, select the element having maximum value of 2^(nd) ionization enthalpy. Be C N O