Multiple Choice
How many valence electrons does rubidium (Rb) have?
2
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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
What are valence electrons primarily responsible for in an atom?
A
Controlling the color of the element
B
Determining the chemical bonding and reactivity of the element
C
Defining the atomic mass of the element
D
Setting the number of protons in the nucleus
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 the ones involved in interactions with other atoms, such as forming chemical bonds.
Recall that chemical bonding (like covalent, ionic, and metallic bonds) depends on how atoms share or transfer valence electrons.
Note that the reactivity of an element is largely determined by how easily its valence electrons can be gained, lost, or shared.
Conclude that valence electrons primarily determine the chemical bonding and reactivity of the element, rather than properties like atomic mass, color, or the number of protons.
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