Multiple Choice
Which of the following represents the correct Lewis dot structure for a neutral magnesium (Mg) atom?
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11. Bonding & Molecular Structure
Lewis Dot Structures: Neutral Compounds
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Which of the following best represents the correct Lewis dot structure for a neutral fluorine atom?
A
F with 5 dots arranged as two pairs and one single dot around the symbol
B
F with 7 dots arranged as three pairs and one single dot around the symbol
C
F with 6 dots arranged as three pairs around the symbol
D
F with 8 dots arranged as four pairs around the symbol
Verified step by step guidance1
Recall that the Lewis dot structure represents the valence electrons of an atom as dots around the element's symbol.
Determine the number of valence electrons for a neutral fluorine atom. Fluorine is in group 17 (or VIIA) of the periodic table, so it has 7 valence electrons.
Distribute these 7 valence electrons as dots around the symbol 'F'. Electrons are placed as pairs on each side (top, bottom, left, right) before placing any single dots.
Arrange the 7 dots as three pairs (6 electrons) and one single dot (1 electron) around the fluorine symbol to represent all valence electrons.
Verify that the total number of dots equals 7, matching the valence electrons of fluorine, and that the atom is neutral (no charges indicated).
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