Isotopes & average atomic mass practice

Front

What subatomic particle is electrically neutral (no charge)?

Back

Neutron

Front

Isotopes of an element have a different number of...

Back

Neutrons

Front

What is the nuclear symbol for lithium-6?

Back

Li-6 (with 3 protons and 3 neutrons)

Front

Which isotope of lead is likely to be the most abundant if the average atomic mass is 207.2?

Back

Lead-207

Front

In a correctly written nuclear symbol, what is located in the 'A' position?

Back

Mass number

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

How do you calculate the average atomic mass of an element?

Back

By taking the weighted average of the masses of its isotopes.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What does the mass number represent?

Back

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

Front

If an element has 6 protons and 8 neutrons, what is its mass number?

Back

14 (6 protons + 8 neutrons)