Isotopes

Front

What are isotopes?

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Tags

NGSS.HS-PS1-8

Front

How do you determine the number of neutrons in an isotope?

Back

Subtract the atomic number from the mass number (e.g., for C-14: 14 - 6 = 8 neutrons).

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the mass number of an isotope?

Back

The total number of protons and neutrons in the nucleus of an atom.

Front

How many neutrons does C-14 contain?

Back

8 neutrons.

Front

What is the most abundant isotope of Calcium?

Back

Ca-40.

Front

If an atom has 1 proton, 1 electron, and 1 neutron, what is its atomic number?

Back

1.

Tags

NGSS.MS-PS1-1

Front

What is the difference between isotopes and ions?

Back

Isotopes have the same number of protons but different numbers of neutrons; ions have the same number of protons but different numbers of electrons.

Front

What is an example of an isotope?

Back

Carbon-12 (C-12) and Carbon-14 (C-14) are isotopes of carbon.

Front

Why are isotopes important in science?

Back

They are used in dating archaeological finds, medical imaging, and understanding nuclear reactions.

Tags

NGSS.HS-PS1-8