Front

What is a Bohr model?

Back

A Bohr model is a diagram that represents the structure of an atom, showing electrons orbiting the nucleus in defined paths or energy levels.

Front

What does the nucleus of an atom contain?

Back

The nucleus contains protons and neutrons, which are the particles that make up the atom's mass.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (it is neutral).

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

How many electrons can the first energy level hold?

Back

The first energy level can hold a maximum of 2 electrons.

Front

How many electrons can the second energy level hold?

Back

The second energy level can hold a maximum of 8 electrons.

Front

What is the atomic number of an element?

Back

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

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.

Front

What is the significance of the electron configuration?

Back

Electron configuration describes the distribution of electrons in an atom's energy levels, which influences its chemical properties.