
Basic Chemistry Concepts
Flashcard
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Rebecca Ward
FREE Resource
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28 questions
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1.
FLASHCARD QUESTION
Front
Atom
Back
Basic unit of matter. Smallest particle of an element.
2.
FLASHCARD QUESTION
Front
Atomic number
Back
The number of protons in the nucleus of an atom.
3.
FLASHCARD QUESTION
Front
Electron
Back
A subatomic particle that has a negative charge.
4.
FLASHCARD QUESTION
Front
Electron dot diagram
Back
A model of an atom in which each dot represents a valence electron.
5.
FLASHCARD QUESTION
Front
Element
Back
A substance that cannot be broken down into simpler substances.
6.
FLASHCARD QUESTION
Front
Orbital levels
Back
A region of an atom in which electrons of the same energy are likely to be found.
7.
FLASHCARD QUESTION
Front
Ion
Back
An atom or group of atoms that has a positive or negative charge.
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