Atomic Number and Atomic Mass
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the atomic number?
Back
The atomic number is the number of protons in the nucleus of an atom.
2.
FLASHCARD QUESTION
Front
What is the atomic mass?
Back
The atomic mass is the weighted average mass of an atom's isotopes, measured in atomic mass units (amu).
3.
FLASHCARD QUESTION
Front
How do you calculate the number of neutrons in an atom?
Back
Number of Neutrons = Atomic Mass - Atomic Number.
4.
FLASHCARD QUESTION
Front
What particle has a positive charge?
Back
Proton.
5.
FLASHCARD QUESTION
Front
What particle has a negative charge?
Back
Electron.
6.
FLASHCARD QUESTION
Front
What particle has no charge?
Back
Neutron.
7.
FLASHCARD QUESTION
Front
What is the relationship between atomic number and protons?
Back
The atomic number is equal to the number of protons in an atom.
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