Multiple Choice
How many valence electrons does arsenic (As) have?
3
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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 does the number of electrons in an atom's valence shell determine?
A
The melting point of the element
B
The number of neutrons in the nucleus
C
The atomic mass of the element
D
The chemical reactivity and bonding behavior of the atom
Verified step by step guidance1
Understand that the valence shell of an atom is the outermost electron shell that contains electrons involved in chemical bonding.
Recognize that the number of electrons in the valence shell determines how an atom interacts with other atoms, influencing its ability to form chemical bonds.
Know that chemical reactivity refers to how readily an atom will undergo chemical reactions, which depends largely on the valence electrons.
Realize that properties like melting point, number of neutrons, and atomic mass are not directly determined by valence electrons but by other atomic characteristics.
Conclude that the number of valence electrons primarily determines the chemical reactivity and bonding behavior of the atom.
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