Multiple Choice
How many valence electrons does lithium (Li) have available for bonding?
50
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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 is primarily involved in chemical reactions?
A
Protons in the nucleus
B
Neutrons in the nucleus
C
Valence electrons
D
Core electrons
Verified step by step guidance1
Understand that chemical reactions involve the making and breaking of bonds between atoms.
Recall that atoms consist of a nucleus (containing protons and neutrons) and electrons arranged in shells around the nucleus.
Recognize that protons and neutrons are located in the nucleus and do not directly participate in chemical bonding.
Identify that electrons in the outermost shell, called valence electrons, are the ones involved in forming chemical bonds.
Conclude that valence electrons determine an atom's chemical reactivity and are primarily involved in chemical reactions.
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