The minimum energy required to remove an electron from an atom is known as

Assessment: WAEC SSCE - Physics - 2003 (Objective) Subject: Physics

Question 1 Report

The minimum energy required to remove an electron from an atom is known as
Answer Details
The minimum energy required to remove an electron from an atom is known as ionization energy. It is the energy needed to overcome the attractive force between the negatively charged electrons and positively charged nucleus of an atom. Once an electron is removed from the atom, the atom becomes a positively charged ion. The ionization energy varies depending on the atomic number of the element and the number of electrons in the outermost shell. The ionization energy is an important property of atoms and is used to determine their reactivity and chemical behavior.

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