Question

in the ground state of an atom the electron is present in which shell​

Answer 1

Answer: In the ground state of atom, electron is present in it's valent shell.

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Answer 2

Answer:

In the ground state of an atom the electron is present in the shell nearest to the nucleus

Explanation:

• An atom's nucleus is surrounded by electrons, which occupy shells or orbitals with different energies.
• The state with the lowest energy for an electron is its ground state, or the energy level it typically resides at.
• When an electron momentarily occupies an energy level larger than its ground state, it is said to be in an excited state.
• Every orbital has a particular energy associated with it. An electron must cross the energy gap between its current orbital and the orbit it is moving to in order to be moved to one with a higher energy.
• This implies that it must either absorb a photon with precisely that much energy or absorb that much energy from another particle in a collision.
• However, electrons do not remain in excited states for very long; instead, they quickly transition back to their ground states and release a photon with the same energy as the one that was absorbed.
• Therefore, the electron is closest to the nucleus in the ground state and goes to the outermost valence electron when it reaches a higher energy level.

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