Isotopes and Calculating Atomic Mass
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is located in the 'A' position of a correctly written isotope symbol?
Back
Mass number
2.
FLASHCARD QUESTION
Front
Which isotope of lithium has 4 neutrons?
Back
Li-7
3.
FLASHCARD QUESTION
Front
How many neutrons does the isotope 89Kr have?
Back
53 neutrons
4.
FLASHCARD QUESTION
Front
If an isotope has three forms with 30% at 4 amu, 20% at 5 amu, and 50% at 3 amu, what is the average atomic mass?
Back
4 amu
5.
FLASHCARD QUESTION
Front
How many protons are in the isotope of titanium?
Back
22 protons
6.
FLASHCARD QUESTION
Front
Define an isotope.
Back
Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons.
7.
FLASHCARD QUESTION
Front
What is atomic mass?
Back
Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).
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