Atomic Structure and Isotopes

Front

What is the charge of a neutron?

Back

Neutrons have no charge (neutral).

Front

How many electrons does an uncharged atom of Neon have?

Back

An uncharged atom of Neon has 10 electrons.

Front

How many protons does an atom of Sodium (Na) have if the charge is +2?

Back

An atom of Sodium (Na) has 11 protons.

Front

Which two components of an atom contribute to the mass?

Back

Protons and neutrons contribute to the mass of an atom.

Front

How many protons does the isotope of titanium have?

Back

The isotope of titanium has 22 protons.

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 atomic number of an element?

Back

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

Front

What is the mass number of an atom?

Back

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

Front

What is the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus and are involved in chemical bonding.

Front

What is the difference between atomic mass and mass number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while mass number is the total number of protons and neutrons in a specific isotope.