Multiple Choice
How many bonds and lone pairs can be found around Mg atoms?
a) 2, 1 b) 2, 0 c) 3, 1 d) 3, 0
4. Molecular Compounds
Bonding Preferences
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How many bonds and nonbonding electrons can be found around Si atoms?
A
4, 4
B
2, 4
C
3, 2
D
4, 0
Verified step by step guidance1
Understand the electronic configuration of a silicon (Si) atom. Silicon is in group 14 of the periodic table, which means it has 4 valence electrons.
Recognize that silicon typically forms covalent bonds by sharing its valence electrons with other atoms to achieve a stable octet configuration.
Determine the number of bonds formed by silicon. Since silicon has 4 valence electrons, it can form 4 covalent bonds by sharing each of its electrons with other atoms.
Consider the concept of nonbonding electrons, also known as lone pairs. Silicon, when forming 4 bonds, uses all its valence electrons for bonding, leaving no electrons as nonbonding or lone pairs.
Conclude that around a silicon atom, there are 4 bonds and 0 nonbonding electrons, which matches the correct answer provided.
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