What is the atomic number of an element?
Review Atomic Theory/Atoms

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•
Chemistry
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
The atomic number is the number of protons in each atom of the element.
2.
FLASHCARD QUESTION
Front
What are isotopes?
Back
Isotopes are atoms of the same element that have different masses.
3.
FLASHCARD QUESTION
Front
How many protons are in an atom of Nitrogen-16?
Back
7 protons.
4.
FLASHCARD QUESTION
Front
Which atom of these isotopes has 3 protons? (Li)
Back
All of them (Lithium-6, Lithium-7, Lithium-9).
5.
FLASHCARD QUESTION
Front
How many protons are in the isotope with atomic number 29?
Back
29 protons.
6.
FLASHCARD QUESTION
Front
What is an atom?
Back
An atom is the smallest unit of an element, consisting of protons, neutrons, and electrons.
7.
FLASHCARD QUESTION
Front
What is the difference between protons and neutrons?
Back
Protons are positively charged particles, while neutrons have no charge.
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