Periodic Table Review Flashcards

Flashcards for Periodic Table Review

States of Matter

The three states of matter are solid, liquid, and gas.

Solid State

Particles vibrate in place.

Gas State

Particles move the fastest.

Liquid State

Particles slide past each other to change shape.

Ion

A charged atom with a different number of protons and electrons.

Isotope

Atoms with the same number of protons but a different number of neutrons (different mass number).

Atomic Number

The number of protons in an atom.

Mass Number

The total number of protons and neutrons in an atom's nucleus.

Atomic Mass

The average mass of all the isotopes of an element.

Metals

Located on the left side of the periodic table.

Non-metals

Located on the right side of the periodic table.

Metalloids

Elements with properties of both metals and nonmetals (e.g., B, Si, Ge, As, Sb, Te, Po).

Halogens

Family 17 on the periodic table.

Noble Gases

Family 18 on the periodic table.

Alkali Metals

Family 1 on the periodic table.

Alkaline Earth Metals

Family 2 on the periodic table.

Transition Metals

Families 3-12 on the periodic table.

Compound

Substance with chemical formulas showing elements bonded together.

Mixture

Substance that does not have chemical formulas.

Chemical Change

A process that involves a change in the chemical identity of a substance, often with evidence like heat, flame, or gas production.

Physical Change

A change in the form or appearance of a substance, but not in its chemical composition (e.g., change of state).

Law of Conservation of Mass

The principle that the total mass of reactants in a chemical reaction is equal to the total mass of the products.