Atomic Model (Flashcardizz)

Front

What is the formula to calculate the mass number of an atom?

Back

Mass number = Protons + Neutrons

Front

How is the period number of an element related to its electron configuration?

Back

The period number indicates the number of energy levels (shells) in the electron configuration.

Front

What charge does a proton carry?

Back

A proton carries a positive charge.

Front

What is the name of the element with the atomic number 18?

Back

Argon.

Front

What is the mass number of an atom with 3 protons and 4 neutrons?

Back

7.

Front

Define an atom.

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are neutrons and what is their charge?

Back

Neutrons are subatomic particles found in the nucleus of an atom and have no charge (neutral).

Front

What is the significance of the atomic number of an element?

Back

The atomic number represents the number of protons in the nucleus of an atom and determines the element's identity.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

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.