An atom with 11 protons, 12 neutrons, and 10 electrons has an atomic mass of 21.

Name: An atom with 11 protons, 12 neutrons, and 10 electrons has an atomic mass of 21.
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Question

Quizplus · Accepted Answer

The given atomic number (number of protons) is 11, so the atomic mass should be close to 22 (11 protons + 12 neutrons). However, the given atomic mass is only 21, which is not possible as the electrons do not significantly contribute to the overall mass of an atom. Therefore, the given information is incorrect.

An Atom with 11 Protons, 12 Neutrons, and 10 Electrons