Atomic Theory
Flashcard
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
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20 questions
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1.
FLASHCARD QUESTION
Front
Who came up with the first atomic theory? Options: Dalton, Socrates, Thomas, Rutherford
Back
Dalton
2.
FLASHCARD QUESTION
Front
What did Thomson's atomic theory model look like?
Back
A scoop of chocolate chip ice cream. It had electrons scattered within a ball of positive charge.
3.
FLASHCARD QUESTION
Front
What did Bohr's atomic theory model look like?
Back
Electrons orbiting the nucleus like the planets around the sun.
4.
FLASHCARD QUESTION
Front
What does the cloud model look like in atomic theory?
Back
A cloud of electrons floating around the nucleus.
5.
FLASHCARD QUESTION
Front
What did Rutherford discover about atoms?
Back
An atom is mostly empty space, but has a dense positively charged center (nucleus).
6.
FLASHCARD QUESTION
Front
What is the mass of a proton?
Back
1 amu
7.
FLASHCARD QUESTION
Front
What is a particle with no charge?
Back
neutron
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