Atoms

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are protons?

Back

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

Front

What is the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom, contributing to the atomic mass.

Front

What is the Periodic Table?

Back

The Periodic Table is a tabular arrangement of all known elements, organized by increasing atomic number.

Front

How do you calculate the atomic mass of an element?

Back

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

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

Where are electrons located in an atom?

Back

Electrons are located in the electron cloud surrounding the nucleus of an atom.

Front

What is an isotope?

Back

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