Atomic Structure

Front

What are the 3 subatomic particles that make up the atom?

Back

Protons, Neutrons, and Electrons.

Front

If an atom has 3 electrons, how many protons does it have?

Back

3 protons.

Front

Which subatomic particle is neutral in charge?

Back

Neutrons.

Front

What is the charge of protons, neutrons, and electrons?

Back

Protons (positive); Neutrons (neutral); Electrons (negative).

Front

What part of the atom do electrons occupy?

Back

Electrons occupy energy levels or electron clouds around the nucleus.

Front

What is the nucleus of an atom composed of?

Back

The nucleus is composed of protons and neutrons.

Front

What is the mass of a proton compared to an electron?

Back

A proton is approximately 1836 times more massive than an electron.

Front

What determines the atomic number of an element?

Back

The atomic number is determined by the number of protons 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.

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.