Atomic structure

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 particles are found in the nucleus of an atom?

Back

The nucleus contains protons and neutrons.

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 (neutral).

Front

What is the charge of an electron?

Back

An electron has a negative charge.

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 difference between atomic number and atomic mass?

Back

The atomic number is the number of protons, while the atomic mass is the total number of protons and neutrons.

Front

What is an isotope?

Back

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

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number and properties, helping to predict their behavior.

Front

What is a valence electron?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.