Multiple Choice
How many valence electrons does a neutral carbon atom have?
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9. Electrons in Atoms and the Periodic Table
Valence Electrons of Elements (Simplified)
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In a simplified model of atomic structure, what is a valence electron?
A
Any electron located in a completely filled inner shell that never affects chemical reactivity
B
An electron in the outermost occupied energy level of an atom that can be involved in chemical bonding
C
An electron found in the nucleus that determines the mass number of an atom
D
A positively charged particle in the electron cloud responsible for the atomic number
Verified step by step guidance1
Understand that electrons in an atom are arranged in energy levels or shells around the nucleus.
Recognize that valence electrons are specifically those electrons located in the outermost occupied energy level (shell) of an atom.
Know that valence electrons are important because they can be involved in chemical bonding and determine the chemical properties of an element.
Distinguish valence electrons from inner shell electrons, which are usually not involved in bonding and chemical reactivity.
Identify that valence electrons are not particles in the nucleus, nor are they positively charged; they are negatively charged electrons in the outer shell.
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