Flashcard: Isotopes

Front

What happens to an atom with too many or too few neutrons?

Back

It becomes unstable.

Front

Which subatomic particle never changes for an element?

Back

Protons.

Front

How many protons and neutrons does a Carbon-13 atom have?

Back

6 protons and 7 neutrons.

Front

How many neutrons does an isotope of Sodium-24 have?

Back

13 neutrons.

Front

What do different isotopes have?

Back

Different mass numbers.

Front

Define isotopes.

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is a neutron?

Back

A subatomic particle found in the nucleus of an atom, with no electric charge.

Front

What is a proton?

Back

A positively charged subatomic particle found in the nucleus of an atom.

Front

How do isotopes of the same element differ?

Back

They differ in their mass numbers due to different numbers of neutrons.