Summative: Structure of the Atom

Front

What are isotopes?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons, resulting in different atomic masses.

Front

What is the charge of a neutron?

Back

A neutron has a charge of 0 (neutral).

Front

Which subatomic particle has a negative charge?

Back

Electrons are subatomic particles that have a negative charge.

Front

How many electrons does an Iodine atom have?

Back

An Iodine atom has 53 electrons.

Front

What does the atomic number of an element represent?

Back

The atomic number represents 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 the nucleus of an atom.

Front

What is the role of electrons in an atom?

Back

Electrons are responsible for chemical bonding and the electrical properties of atoms.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a net charge due to the loss or gain of one or more electrons.

Front

What is the significance of the atomic mass unit (amu)?

Back

The atomic mass unit (amu) is a standard unit of mass that quantifies mass on an atomic or molecular scale.

Front

What is a quark?

Back

A quark is a fundamental particle and a basic constituent of matter, combining to form protons and neutrons.