Question

Which statement describes how an atom in the ground state becomes excited?
(1) The atom absorbs energy, and one or more electrons move to a higher electron shell.
(2) The atom absorbs energy, and one or more electrons move to a lower electron shell.
(3) The atom releases energy, and one or more electrons move to a higher electron shell.
(4) The atom releases energy, and one or more electrons move to a lower electron shell.

Answer 1

(1) The atom absorbs energy, and one or more electrons move to a higher electron shell.

Answer 2

1) The atom absorbs energy, and one or more electrons move to a higher electron shell.

• An atom changes from a ground state to an excited state by taking on energy from its surroundings in a process called absorption.
• The electron absorbs the energy and jumps to a higher energy level.
• In the reverse process, emission, the electron returns to the ground state by releasing the extra energy it absorbed.

So all the statements except 1) are false.

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