(A) Ionization energy is defined as the minimum amount of energy required to remove the most loosely bound electron from an isolated gaseous atom in i

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The energy required to remove an electron from the outermost shell of an isolated gaseous atom in its ground state.

(A) Ionization energy is defined as the minimum amount of energy required to remove the most loosely bound electron from an isolated gaseous atom in its ground state. Mathematically,it is represented as: $X(g) + \text{Energy} \rightarrow X^+(g) + e^-$.

Class 11 Chemistry Classification of Elements and Periodicity in Properties Ionisation energy

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What is the definition of ionization energy for an atom?

A
The energy required to remove an electron from the outermost shell of an isolated gaseous atom in its ground state.
B
The energy released when an electron is added to an isolated gaseous atom.
C
The energy required to excite an electron from the ground state to an excited state.
D
The energy change when an atom gains a proton.