Subatomic Particles
Flashcard
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the mass number of an element?
Back
The mass number is the total number of protons and neutrons in an atom's nucleus.
2.
FLASHCARD QUESTION
Front
What is the charge of a proton?
Back
A proton has a positive charge.
3.
FLASHCARD QUESTION
Front
How many protons does an atom of Oxygen have?
Back
An atom of Oxygen has 8 protons.
4.
FLASHCARD QUESTION
Front
What is the relationship between protons and atomic number?
Back
The atomic number of an element is equal to the number of protons in its nucleus.
5.
FLASHCARD QUESTION
Front
What are isotopes?
Back
Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.
6.
FLASHCARD QUESTION
Front
What is the atomic number of Calcium?
Back
The atomic number of Calcium is 20.
7.
FLASHCARD QUESTION
Front
How many neutrons are in a neutral atom of Calcium with a mass number of 40?
Back
A neutral atom of Calcium with a mass number of 40 has 20 neutrons.
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