Atomic Theory & Structure
Flashcard
•
Science
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the value representing the number of protons in an element?
Back
Atomic Number
2.
FLASHCARD QUESTION
Front
Who proposed the Bohr model of the atom?
Back
Neils Bohr
3.
FLASHCARD QUESTION
Front
What is the measure of the nuclear particles: protons + neutrons?
Back
Atomic Mass
4.
FLASHCARD QUESTION
Front
Who is best known for the 'Plum Pudding' model of the atom?
Back
J.J. Thomson
5.
FLASHCARD QUESTION
Front
What is the tiny, dense, positively charged portion of the atom that holds most of the atomic mass?
Back
Nucleus
6.
FLASHCARD QUESTION
Front
What are the negatively charged particles that orbit the nucleus of an atom?
Back
Electrons
7.
FLASHCARD QUESTION
Front
What is the center of an atom called?
Back
Nucleus
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