Chem Reaction Vocab 1

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Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is an element?
Back
An element is a pure chemical substance that cannot be broken down into simpler substances by chemical means. Examples include Lithium, Oxygen, and Gold.
2.
FLASHCARD QUESTION
Front
How many protons does magnesium have?
Back
Magnesium has 12 protons.
3.
FLASHCARD QUESTION
Front
What charge do protons have?
Back
Protons have a positive charge.
4.
FLASHCARD QUESTION
Front
What are elements made of?
Back
Elements are made of atoms.
5.
FLASHCARD QUESTION
Front
What charge do neutrons have?
Back
Neutrons have no charge.
6.
FLASHCARD QUESTION
Front
What is an atom?
Back
An atom is the smallest unit of an element, consisting of protons, neutrons, and electrons.
7.
FLASHCARD QUESTION
Front
What is the atomic number?
Back
The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.
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