1st semester final review #4: Atomic Theory/Waves/Isotopes

Front

What family of elements forms +2 ions when they react?

Back

Alkaline Earth Metals

Front

What is a nuclear particle that has about the same mass as a proton, but with no electrical charge?

Back

Neutron

Front

What is the formula for the compound that forms when magnesium bonds with phosphorus?

Back

Mg₃P₂

Front

What is the total number of protons and neutrons in the nucleus of an atom called?

Back

Mass number

Front

What does the atomic number of an element indicate?

Back

The number of protons in the nucleus of an atom.

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a proton?

Back

Positive

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the principle behind the wave-particle duality of light?

Back

Light exhibits both wave-like and particle-like properties.

Front

What is the significance of Avogadro's number?

Back

It represents the number of particles in one mole of a substance, approximately 6.022 x 10²³.