alleryStart learning →What name is given to the electrons in the outermost energy level of an atom?
ACore electrons
BValence electrons
CBonded electrons
DPaired electrons
Answer & Solution
Correct answer: B. Valence electrons
1. An atom has a central nucleus surrounded by electrons in fixed energy levels.
2. The electrons in the outermost energy level are called the valence electrons.
3. Only these electrons take part in bonding, which is why a Lewis diagram shows them alone.
4. Electrons in the inner levels are the core electrons, so that option names the wrong group.
_Source: Siyavula Physical Sciences Grade 11 (Everything Science, CC BY 4.0), Chapter 3: Atomic combinations_
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