AQA Atomic Structure (9-1)

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Chemistry
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What are the three main subatomic particles of an atom?
Back
Protons, Neutrons, Electrons.
2.
FLASHCARD QUESTION
Front
What charge does a proton carry?
Back
Positive (+) charge.
3.
FLASHCARD QUESTION
Front
What charge does a neutron carry?
Back
No charge (neutral).
4.
FLASHCARD QUESTION
Front
What charge does an electron carry?
Back
Negative (-) charge.
5.
FLASHCARD QUESTION
Front
Who proposed the 'plum pudding model' of the atom?
Back
Joseph Thomson.
6.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The number of protons in the nucleus of an atom.
7.
FLASHCARD QUESTION
Front
What is the atomic mass of an atom?
Back
The weighted average mass of an atom's isotopes, typically measured in atomic mass units (amu).
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