Isotopes have the same number of ____, but different number of ____.
U02 Atomic Structure Review

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Chemistry
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
protons + electrons; neutrons
2.
FLASHCARD QUESTION
Front
What is the symbol for a Rubidium ion with a charge of +1?
Back
Rb⁺
3.
FLASHCARD QUESTION
Front
An atom becomes _________ when it gains electrons.
Back
Negative
4.
FLASHCARD QUESTION
Front
How many neutrons are in fluorine-20?
Back
11
5.
FLASHCARD QUESTION
Front
What is found in the nucleus of atoms?
Back
Protons and neutrons.
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 mass number of an atom?
Back
The total number of protons and neutrons in the nucleus.
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