Review for Unit Test

Front

What is the atomic number of an atom?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the atomic number of chlorine?

Back

The atomic number of chlorine is 17.

Front

If an object has more positive than negative charges, what is its electrical charge?

Back

The electrical charge is positive.

Front

What does the Bohr Model represent?

Back

The Bohr Model represents the structure of an atom, depicting electrons in specific energy levels around the nucleus.

Front

How are electrons arranged in an atom?

Back

Electrons are arranged in energy levels or shells around the nucleus.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What is a neutron?

Back

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

Front

What is the significance of the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, reflecting the number of protons and neutrons.

Front

What is an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net charge.