Lewis Dot Structures & VSEPR
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a Lewis Dot Structure?
Back
A Lewis Dot Structure is a diagram that represents the valence electrons of atoms within a molecule, showing how they are arranged among the atoms.
2.
FLASHCARD QUESTION
Front
How many valence electrons does nitrogen have?
Back
Nitrogen has 5 valence electrons.
3.
FLASHCARD QUESTION
Front
What is the Lewis Dot Structure for ammonia (NH3)?
Back
The Lewis Dot Structure for ammonia shows nitrogen in the center with three hydrogen atoms bonded to it and a lone pair of electrons on nitrogen.
4.
FLASHCARD QUESTION
Front
What is the significance of the VSEPR theory?
Back
The VSEPR (Valence Shell Electron Pair Repulsion) theory is used to predict the 3D shape of molecules based on the repulsion between electron pairs.
5.
FLASHCARD QUESTION
Front
What is the molecular shape of methane (CH4) according to VSEPR theory?
Back
The molecular shape of methane (CH4) is tetrahedral.
6.
FLASHCARD QUESTION
Front
Describe the polarity of the carbon dioxide (CO2) molecule.
Back
The C-O bonds are polar, but the molecule is non-polar due to its linear shape, which causes the dipoles to cancel.
7.
FLASHCARD QUESTION
Front
What does each line in a Lewis Structure represent?
Back
Each line in a Lewis Structure represents 2 electrons.
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