Chemistry: Atomic Structure and Theory Flashcard

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•
Chemistry
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Bohr model of the atom?
Back
The Bohr model describes electrons orbiting the nucleus at specific distances and energy levels, absorbing or emitting energy when they jump between these levels.
2.
FLASHCARD QUESTION
Front
What particle in the nucleus has no charge?
Back
Neutron.
3.
FLASHCARD QUESTION
Front
What is the charge of an electron?
Back
Negatively charged.
4.
FLASHCARD QUESTION
Front
Who proposed the plum pudding model of the atom?
Back
J.J. Thomson.
5.
FLASHCARD QUESTION
Front
How many neutrons are in a Magnesium atom with an atomic number of 12 and mass number of 24?
Back
12 neutrons.
6.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The number of protons in the nucleus of an atom, which determines the element's identity.
7.
FLASHCARD QUESTION
Front
What is the mass number of an atom?
Back
The total number of protons and neutrons in the nucleus.
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