Atomic Structure

Front

What are protons and neutrons?

Back

Protons and neutrons are subatomic particles found in the nucleus of an atom. They have about the same mass.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the charge of a neutron?

Back

Neutrons have no charge.

Front

What is the charge of a proton?

Back

Protons have a positive charge.

Front

Where are electrons located in an atom?

Back

Electrons are located in energy levels or shells around the nucleus.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing 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 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 is an isotope?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons.

Front

What is the role of electrons in chemical bonding?

Back

Electrons in the outermost energy level (valence electrons) are involved in forming chemical bonds between atoms.