Chemistry 2nd CBA -- 24/25

Front

What are subatomic particles?

Back

Subatomic particles are the particles that make up an atom, including protons, neutrons, and electrons.

Front

Which of the following is NOT a subatomic particle: proton, compound, electron, neutron?

Back

Compound is NOT a subatomic particle.

Front

How many neutrons are in an atom of Nitrogen-16?

Back

An atom of Nitrogen-16 has 9 neutrons.

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

What is a Noble Gas?

Back

Noble gases are a group of chemical elements that are odorless, colorless, monatomic gases with very low chemical reactivity.

Front

Which of the following is a Noble Gas: Krypton, Chlorine, Radium, Gallium?

Back

Krypton is a Noble Gas.

Front

What are Halogens?

Back

Halogens are a group of elements in Group 17 of the periodic table, known for their reactivity and tendency to form salts.

Front

Which of the following is a Halogen: Bromine, Rubidium, Argon, Beryllium?

Back

Bromine is a Halogen.

Front

What is atomic radius?

Back

Atomic radius is a measure of the size of an atom, typically the distance from the nucleus to the outermost shell of electrons.

Front

Which element has the smallest atomic radius: magnesium, chlorine, bromine, argon?

Back

Argon has the smallest atomic radius.