Multiple Choice
How many valence electrons are present in a neutral atom of nitrogen (N)?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes valence electrons and explains their importance to chemists?
A
Valence electrons are the electrons found in the nucleus of an atom; they are responsible for the atom's mass.
B
Valence electrons are the protons in the outer shell; they determine the atomic number of an element.
C
Valence electrons are the electrons in the outermost shell of an atom; they determine how an element reacts chemically with other substances.
D
Valence electrons are the electrons in the innermost shell; they do not participate in chemical bonding.
Verified step by step guidance1
Understand that valence electrons are the electrons located in the outermost shell (energy level) of an atom.
Recognize that these valence electrons are important because they are the ones involved in forming chemical bonds with other atoms.
Recall that the number and arrangement of valence electrons determine an element's chemical reactivity and how it interacts with other substances.
Note that electrons in inner shells (closer to the nucleus) are generally not involved in chemical bonding and do not affect chemical properties directly.
Conclude that the best description of valence electrons is that they are the electrons in the outermost shell of an atom and they determine how an element reacts chemically with other substances.
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