PS8.1.3 VOCAB

What is the Periodic Table?

• A table organizing elements by atomic number and chemical properties.

• A list of all known elements.

• A chart showing the history of chemistry.

What does Atomic Number represent?

• The number of protons in an atom’s nucleus.

• The total number of neutrons in an atom.

• The mass of an atom.

What is Atomic Mass?

• The average mass of an atom’s isotopes.

• The mass of a single proton.

• The weight of an element in grams.

Define Element.

• A pure substance consisting of only one type of atom.

• A mixture of different atoms.

• A compound made of two or more elements.

What is a Proton?

• A positively charged subatomic particle in the nucleus.

• A negatively charged particle in an atom.

• A neutral particle found in the nucleus.

What characterizes a Metal?

• Typically shiny, malleable, conductive, and ductile.

• Brittle and poor at conducting heat.

• Gaseous at room temperature.

What is a Nonmetal?

• An element that lacks metallic properties.

• An element that is shiny and conductive.

• An element that is always a gas.

Define Metalloid.

• An element with properties of both metals and nonmetals.

• An element that is always solid.

• An element that is a good conductor.

What is Ductility?

• The ability of a material to be stretched into a wire.

• The ability of a material to be broken.

• The ability of a material to conduct electricity.

What does Malleability refer to?

• The ability of a material to be hammered into thin sheets.

• The ability of a material to dissolve.

• The ability of a material to conduct heat.