What is an isotope?
Isotopes

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•
Chemistry
•
10th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.
2.
FLASHCARD QUESTION
Front
How do you determine the mass number of an isotope?
Back
The mass number is the sum of the number of protons and neutrons in the nucleus of an atom.
3.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.
4.
FLASHCARD QUESTION
Front
How many protons are in the isotope C-14?
Back
6 protons.
5.
FLASHCARD QUESTION
Front
If an atom has 76 protons and 114 neutrons, what is its isotope notation?
Back
Osmium-190 (76 protons + 114 neutrons = 190 mass number).
6.
FLASHCARD QUESTION
Front
What do isotopes of the same element have in common?
Back
They have the same atomic number and number of protons.
7.
FLASHCARD QUESTION
Front
How many neutrons does the isotope Li-7 have?
Back
Li-7 has 4 neutrons (7 mass number - 3 protons = 4 neutrons).
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