Atomic Structure Chemistry_2024

Front

What is an isotope?

Back

An isotope of an element has the same number of protons but a different number of neutrons.

Front

How do you calculate the number of neutrons in an atom?

Back

Subtract the atomic number from the mass number.

Front

If an element has a mass number of 11 and an atomic number of 5, how many neutrons does it have?

Back

6 neutrons.

Front

What must be true for an atom to be neutral?

Back

The number of protons must equal the number of electrons.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What happens if a proton is added to an atom?

Back

It becomes a different element.

Front

What is gamma radiation?

Back

A type of high-energy electromagnetic radiation.