12-4 Isotopes & Average Atomic Mass

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•
Chemistry
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the atomic mass of an element?
Back
The weighted average of the masses of the isotopes of the element.
2.
FLASHCARD QUESTION
Front
How do you calculate the average atomic mass of an element with multiple isotopes?
Back
Multiply the mass of each isotope by its relative abundance (as a decimal), then sum these values.
3.
FLASHCARD QUESTION
Front
What is an isotope?
Back
Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons.
4.
FLASHCARD QUESTION
Front
What is the mass number of an isotope?
Back
The mass number is the total number of protons and neutrons in the nucleus of an atom.
5.
FLASHCARD QUESTION
Front
How many protons are in the isotope Fluorine-18?
Back
9 protons.
6.
FLASHCARD QUESTION
Front
What is the correct symbol for Fluorine-18?
Back
18F or F-18.
7.
FLASHCARD QUESTION
Front
What is the difference between carbon-12 and carbon-14?
Back
They differ in the number of neutrons; carbon-12 has 6 neutrons, while carbon-14 has 8 neutrons.
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