PS - Unit 5 Review Chemistry

Front

What does it mean if a material is ductile?

Back

A ductile material can be drawn into thin wires without breaking.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a metalloid?

Back

A metalloid is an element that has properties of both metals and nonmetals.

Front

What are the characteristics of metals?

Back

Metals are typically good conductors of heat and electricity, malleable, and ductile.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound consists of two or more different types of atoms bonded together.

Front

What is the significance of protons in an atom?

Back

Protons determine the atomic number and identity of an element.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and stability of the nucleus but do not affect the charge.