Atoms and Periodic Table

Flashcard
•
Science
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an atom?
Back
An atom is the smallest unit of matter that retains the properties of an element.
Tags
NGSS.MS-PS1-1
2.
FLASHCARD QUESTION
Front
What are the three main subatomic particles?
Back
Protons, neutrons, and electrons.
Tags
NGSS.MS-PS1-1
3.
FLASHCARD QUESTION
Front
What charge do protons carry?
Back
Protons carry a positive charge.
4.
FLASHCARD QUESTION
Front
What charge do electrons carry?
Back
Electrons carry a negative charge.
5.
FLASHCARD QUESTION
Front
What charge do neutrons carry?
Back
Neutrons have no charge (neutral).
6.
FLASHCARD QUESTION
Front
What is the atomic number?
Back
The atomic number is the number of protons in the nucleus of an atom.
7.
FLASHCARD QUESTION
Front
What does the atomic mass represent?
Back
The atomic mass represents the average mass of an atom, taking into account the mass of protons and neutrons.
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