Atoms Flashcard 2

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom of that element.

Front

How many electrons does a neutral atom of carbon have?

Back

A neutral atom of carbon has 6 electrons, equal to its atomic number.

Front

What are the three main subatomic particles?

Back

The three main subatomic particles are protons, neutrons, and electrons.

Front

Where are protons and neutrons located in an atom?

Back

Protons and neutrons are located in the nucleus of the atom.

Front

What charge do electrons have?

Back

Electrons have a negative charge.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom that contains protons and neutrons.

Front

What is the charge of protons?

Back

Protons have a positive charge.

Front

What is the role of neutrons in an atom?

Back

Neutrons help stabilize the nucleus and do not have a charge.

Front

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

Back

The number of neutrons can be found by subtracting the atomic number from the atomic mass.

Front

What is an electron cloud?

Back

The electron cloud is the region around the nucleus where electrons are likely to be found.