8G Science HW#13: Chapter 2.5

Fill in the blank.

A natural occurring solid that has a crystal structure & a definite chemical composition is called ______.

Fill in the blank.

A person who studies minerals and identifies their properties.

The structure consists of alternating positively-charged cations and negatively-charged anions is called _____.

• Ionic Crystal

• Covalent Crystal

• Mineral Crystal

• Molecular Crystal

Consists of atoms at the lattice points of the crystal, with each atom being covalently bonded to its nearest neighbor atoms is called _______.

• Ionic Crystal

• Covalent Crystal

• Mineral Crystal

• Molecular Crystal

A type of ionic crystal that breaks easily along flat surfaces and at sharp angles.

• Mica

• Halite

• Saly

• Quartz

Commonly known as a "Rock Salt"

• Mica

• Halite

• Table salt

• Quartz

TRUE or FALSE

Minerals have characteristics properties such as hardness, density, color, crystals shape, and the way the crystal breaks and grows.

• TRUE

• FALSE

TRUE or FALSE

The properties of a mineral do not depend on its chemical composition and its bonding.

• TRUE

• FALSE

TRUE or FALSE

The stronger the chemical bonds in a mineral crystal, the softer the crystal is.

• TRUE

• FALSE