What is the shape and polarity of NF₃?
Chemistry Semester I Final Review

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Science
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Trigonal pyramidal shape; polar molecule.
2.
FLASHCARD QUESTION
Front
Which group tends to GAIN electrons?
Back
Nonmetals.
3.
FLASHCARD QUESTION
Front
How many electrons does an s subshell hold?
Back
s subshell: 2, p subshell: 6, d subshell: 10, f subshell: 14.
4.
FLASHCARD QUESTION
Front
What is an isotope?
Back
An atom with a different number of neutrons.
5.
FLASHCARD QUESTION
Front
What is the 3D repeating pattern of positive and negative ions in an ionic compound called?
Back
Crystal lattice.
6.
FLASHCARD QUESTION
Front
What is the definition of a covalent bond?
Back
A chemical bond formed by the sharing of electrons between atoms.
7.
FLASHCARD QUESTION
Front
What is the octet rule?
Back
Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.
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