Isotopes

Isotopes

Assessment

Flashcard

Chemistry

10th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an isotope?

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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