What is the chemical symbol for Helium?
Unit review
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Science
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7th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
He
2.
FLASHCARD QUESTION
Front
What are subatomic particles that are neutral in charge?
Back
Neutrons
3.
FLASHCARD QUESTION
Front
Which element has no neutrons in its nucleus?
Back
Hydrogen
4.
FLASHCARD QUESTION
Front
What happens to the thermal energy of a substance as its temperature increases?
Back
The thermal energy increases.
5.
FLASHCARD QUESTION
Front
What is the term for a liquid changing to a solid?
Back
Freezing
6.
FLASHCARD QUESTION
Front
What is the atomic number of Helium?
Back
2
7.
FLASHCARD QUESTION
Front
What is the process called when a solid turns into a liquid?
Back
Melting
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