
Unit 2 Pt 2 Test Review 2024
Flashcard
•
Science
•
10th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What type of bond is formed between Calcium (Ca) and Chlorine (Cl)?
Back
Ionic bond, because the electronegativity difference is greater than 1.7.
2.
FLASHCARD QUESTION
Front
What is a characteristic property of ionic compounds?
Back
They have a HIGH melting point.
3.
FLASHCARD QUESTION
Front
What is incorrect about the formula Ca2Br?
Back
The charges were not crisscrossed.
4.
FLASHCARD QUESTION
Front
What type of bond is formed between Nitrogen (N) and Selenium (Se)?
Back
Polar covalent bond, because the electronegativity difference is between 0.5 and 1.7.
5.
FLASHCARD QUESTION
Front
How many valence electrons does Astatine (At) have?
Back
7 valence electrons.
6.
FLASHCARD QUESTION
Front
Define ionic bond.
Back
A bond formed through the transfer of electrons from one atom to another, resulting in the attraction between oppositely charged ions.
7.
FLASHCARD QUESTION
Front
What is electronegativity?
Back
A measure of the tendency of an atom to attract a bonding pair of electrons.
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