Multiple Choice
How does the number of valence electrons in an atom influence its chemical reactivity?
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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 part of an atom determines how it will react with other atoms?
A
The protons in the nucleus
B
The total number of electrons
C
The valence electrons
D
The neutrons in the nucleus
Verified step by step guidance1
Understand that the chemical reactivity of an atom depends on how it interacts with other atoms, which is primarily influenced by the electrons involved in bonding.
Recall that electrons are arranged in energy levels or shells around the nucleus, and not all electrons participate equally in chemical reactions.
Identify that the electrons in the outermost shell, called valence electrons, are the ones that determine an atom's chemical properties and reactivity.
Recognize that protons and neutrons in the nucleus do not directly affect chemical reactivity; protons define the element, and neutrons affect isotope stability.
Conclude that the valence electrons are the key factor in determining how an atom will react with other atoms.
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