Atomic Structure

Front

What is the mass number?

Back

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

Front

What is the atomic number of an element with 9 protons?

Back

The atomic number is 9, which is equal to the number of protons in the nucleus.

Front

Where are electrons located in an atom?

Back

Electrons are found in spaces around the nucleus of an atom.

Front

What are subatomic particles that are neutral in charge?

Back

Neutrons are subatomic particles that have no charge.

Front

What does the symbol 'C' represent in chemistry?

Back

The symbol 'C' represents the chemical symbol for the element Carbon.

Front

What are protons?

Back

Protons are positively charged subatomic particles found in the nucleus of an atom.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

How do you calculate the mass number of an atom?

Back

The mass number is calculated by adding the number of protons and neutrons in the nucleus.

Front

What is an isotope?

Back

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.