What is an atom?
11.21.2024 OSE Atomic Structure Flashcard

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Science
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9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An atom is the smallest unit of matter that retains the properties of an element.
2.
FLASHCARD QUESTION
Front
What is the atomic number?
Back
The atomic number is the number of protons in the nucleus of an atom.
3.
FLASHCARD QUESTION
Front
How do you determine the number of protons in an atom?
Back
The number of protons is equal to the atomic number of the atom.
4.
FLASHCARD QUESTION
Front
What is a mass number?
Back
The mass number is the total number of protons and neutrons in the nucleus of an atom.
5.
FLASHCARD QUESTION
Front
If an atom has an atomic number of 15, how many protons does it have?
Back
15 protons.
6.
FLASHCARD QUESTION
Front
What does the atomic number represent in the periodic table?
Back
The atomic number represents the identity of an element.
7.
FLASHCARD QUESTION
Front
What is the relationship between protons and neutrons in an atom?
Back
Protons and neutrons together make up the mass number of an atom.
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