ionic compound gr 9

An____________ is a compound composed of cations and anions.

• ionic compound

• covalent compound

• metallic compound

ionic compounds are electrically________

• positive

• negative

• neutral

The electrostatic forces that hold ions together in ionic compounds are called

• ionic structure

• ionic bond

Tags

NGSS.HS-PS1-3

A ___________shows the numbers of atoms of each element in the smallest representative unit of a substance.

• chemical formula

• formula unit

Tags

NGSS.MS-PS1-1

•_________is the lowest whole-number ratio of ions in an ionic compound.

• chemical structure

• formula unit

Most ionic compounds are________ at room temperature.

• crystalline solids

• amorphous solids

• liquids

Tags

NGSS.HS-PS1-3

Ionic compounds generally have law melting points.

• true

• false

Would you expect to find sodium chloride in underground rock deposits as a solid, liquid, or gas?

• solid because it has low melting point

• solid because it has high melting point

• liquid

• gas

Tags

NGSS.HS-ESS2-5

The _________ of an ion is the number of ions of opposite charge that surround the ion in a crystal.

• coordination number

• atomic number

Tags

NGSS.HS-PS1-3

In NaCl, each ion has a coordination number of_________

• 7

• 6

• 8