Isotopes/structure of an atom

Isotopes/structure of an atom

Assessment

Flashcard

Chemistry

10th Grade

Practice Problem

Hard

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Wayground Content

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13 questions

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1.

FLASHCARD QUESTION

Front

Isotopes of an element contain an equal number of protons but a different number of ________________.

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Back

neutrons

2.

FLASHCARD QUESTION

Front

How many protons are in the isotope pictured above?

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Back

29

3.

FLASHCARD QUESTION

Front

How many neutrons are in the isotope pictured above?

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Back

34

4.

FLASHCARD QUESTION

Front

The mass number of an isotope is made up of which subatomic particles?

Back

protons and neutrons

5.

FLASHCARD QUESTION

Front

What is the number of protons in phosphorus-31?

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Back

15

6.

FLASHCARD QUESTION

Front

The atomic number of an element is the total number of which subatomic particle found in the nucleus?

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Back

Proton

7.

FLASHCARD QUESTION

Front

An unknown element has two naturally occurring isotopes. One has a mass of 10.01 amu and % abundance of 19.8%. The other has a mass of 10.99 amu and % abundance of 80.2%. Calculate the atomic mass.

Back

10.8 amu

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