Valence electrons reside in which shell?

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Get ready for the NCCER Introduction to Electrical Circuits exam. Study with multiple choice questions, each question comes with hints and explanations. Ace your exam with confidence!

Multiple Choice

Valence electrons reside in which shell?

Explanation:
Valence electrons are the electrons in the outermost shell of an atom. These are the ones that are least tightly bound to the nucleus and are available to participate in bonding with other atoms. The inner shells are filled and held tightly, so they don’t typically take part in bonding. The outermost shell is the energy level that can gain, lose, or share electrons to form bonds or interact in conduction in materials. In metals, these outer electrons can move freely, which is why metals conduct electricity. So valence electrons reside in the outermost shell.

Valence electrons are the electrons in the outermost shell of an atom. These are the ones that are least tightly bound to the nucleus and are available to participate in bonding with other atoms. The inner shells are filled and held tightly, so they don’t typically take part in bonding. The outermost shell is the energy level that can gain, lose, or share electrons to form bonds or interact in conduction in materials. In metals, these outer electrons can move freely, which is why metals conduct electricity. So valence electrons reside in the outermost shell.

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