Atomic Structure

Front

What are isotopes?

Back

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

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

Where are electrons located in an atom?

Back

Electrons are found outside the nucleus in electron shells or energy levels.

Front

How do you calculate the number of neutrons in an atom?

Back

The number of neutrons can be calculated by subtracting the atomic number from the mass number (Neutrons = Mass Number - Atomic Number).

Front

What charge do protons carry?

Back

Protons carry a positive charge.

Front

What is the mass number of an atom?

Back

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

Front

What is the role of electrons in an atom?

Back

Electrons are involved in chemical bonding and reactions, and they determine the atom's charge.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, having equal numbers of protons and electrons, while an ion has an unequal number of protons and electrons, resulting in a charge.

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom that has no charge (neutral).

Front

What is the relationship between protons and the identity of an element?

Back

The number of protons in an atom determines the element's identity; each element has a unique number of protons.