Front

What is an isotope?

Back

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

Front

How many protons does titanium have?

Back

Titanium has 22 protons.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the lightest subatomic particle?

Back

The lightest subatomic particle is the electron.

Front

How many electrons does a neutral atom of copper have?

Back

A neutral atom of copper has 29 electrons.

Front

What is the mass number of an isotope?

Back

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

Front

How many neutrons are in Calcium-48?

Back

Calcium-48 has 28 neutrons.

Front

Where are electrons located in an atom?

Back

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

Front

What is the atomic number of an element?

Back

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

Front

What is the difference between isotopes of the same element?

Back

Isotopes of the same element differ in the number of neutrons and therefore have different mass numbers.