What is the term that tells how many protons an element has?
7 - 1st semester final

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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
Atomic number
2.
FLASHCARD QUESTION
Front
Which type of change indicates that a chemical reaction occurred?
Back
Color change
3.
FLASHCARD QUESTION
Front
What happens to energy in an EXOTHERMIC reaction?
Back
Energy is released into the surroundings.
4.
FLASHCARD QUESTION
Front
Where would you be able to find elements that are more similar to one another in the periodic table?
Back
In the same group or column of the periodic table.
5.
FLASHCARD QUESTION
Front
How many carbon dioxide molecules are in 4CO₂?
Back
4
6.
FLASHCARD QUESTION
Front
What is the definition of an element?
Back
A pure substance that cannot be broken down into simpler substances by chemical means.
7.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A process that involves the rearrangement of the molecular or ionic structure of a substance.
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