Bonds and Lewis Structures
Flashcard
•
Chemistry
•
10th - 12th 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 and bonded.
2.
FLASHCARD QUESTION
Front
What type of bond forms when pairs of electrons are shared between two nonmetal atoms?
Back
Covalent bond.
3.
FLASHCARD QUESTION
Front
What is the electronegativity difference that typically indicates an ionic bond?
Back
A large electronegativity difference, usually greater than 1.7.
4.
FLASHCARD QUESTION
Front
What is the correct Lewis structure for the molecule fluorine (F2)?
Back
The Lewis structure shows two fluorine atoms sharing a pair of electrons, represented by two dots or a line between them.
5.
FLASHCARD QUESTION
Front
What type of bond is formed between strontium (Sr) and sulfur (S)?
Back
Ionic bond.
6.
FLASHCARD QUESTION
Front
What is the definition of a covalent bond?
Back
A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.
7.
FLASHCARD QUESTION
Front
What is the correct Lewis structure for water (H2O)?
Back
The Lewis structure shows the oxygen atom in the center with two hydrogen atoms bonded to it, sharing pairs of electrons.
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