Chemistry Fall Semester Review

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•
Chemistry
•
10th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the correct formula for copper(I) cyanide?
Back
CuCN
2.
FLASHCARD QUESTION
Front
What is the weighted average of the masses of the isotopes of an element?
Back
Atomic mass
3.
FLASHCARD QUESTION
Front
What are the darker particles in an atom diagram known as?
Back
Protons
4.
FLASHCARD QUESTION
Front
Why do elements in the same group have similar chemical properties?
Back
They have the same number of valence electrons.
5.
FLASHCARD QUESTION
Front
What is a valence electron?
Back
An electron that is found in the outermost orbital of an atom.
6.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The number of protons in the nucleus of an atom.
7.
FLASHCARD QUESTION
Front
What is the mass number of an atom?
Back
The total number of protons and neutrons in the nucleus.
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