Atomic Structure & History
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the atomic number of Lithium?
Back
3 (It represents the number of protons in an atom of Lithium.)
2.
FLASHCARD QUESTION
Front
What did Rutherford's gold foil experiment conclude about the atom?
Back
The atom is mostly empty space, has a small dense nucleus, and the nucleus is positively charged.
3.
FLASHCARD QUESTION
Front
What is the charge of a neutron?
Back
Neutrons are neutral; they have no charge.
4.
FLASHCARD QUESTION
Front
What must be true for an atom to be electrically neutral?
Back
It must contain the same number of protons and electrons.
5.
FLASHCARD QUESTION
Front
What are the three main subatomic particles?
Back
Protons, Neutrons, and Electrons.
6.
FLASHCARD QUESTION
Front
Where are protons located in an atom?
Back
In the nucleus.
7.
FLASHCARD QUESTION
Front
What is the mass of a proton compared to a neutron?
Back
Protons and neutrons have approximately the same mass.
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