Question

As an electron is brought from an infinite distance close of nucleus of the atom, the energy of electron:

• A. increases to a greater $+ve$ value
• B. decreases to a smaller $+ve$ value
• C. increases to a greater $-ve$ value
• D. decreases to a smaller $-ve$ value

Answer 1

Answer: (C)

increases to a greater $-ve$ value

The energy of an electron is considered as zero at infinite distance from the nucleus as electron come nearer it gets bounded from the nucleus so the energy is negative. Energy is inversely proportional to the distance so, as the distance decreases energy increases to a greater negative value.