What is an atom?
Composition of Matter

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Science
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6th - 8th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The smallest unit of matter that retains the properties of an element.
2.
FLASHCARD QUESTION
Front
What are protons?
Back
Positively charged particles found in the nucleus of an atom.
3.
FLASHCARD QUESTION
Front
What are neutrons?
Back
Neutral particles found in the nucleus of an atom, with no charge.
4.
FLASHCARD QUESTION
Front
What are electrons?
Back
Negatively charged particles that orbit the nucleus of an atom.
5.
FLASHCARD QUESTION
Front
What is a molecule?
Back
A group of two or more atoms bonded together.
6.
FLASHCARD QUESTION
Front
What is a compound?
Back
A substance formed when two or more different elements are chemically bonded.
7.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A combination of two or more substances that are not chemically bonded.
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