8th Grade Chapter 1.4

An atom or a group of atoms that has a charge is called a(n) _______.

______________ is a group of atoms that are covalently bound and have a charge.

• Polyatomic ion

• Atomic bond

• Nonpolar

• Covalent bond

A molecule with a balanced charge that is not equally distributed is called a(n) ________ molecule.

A ________________ is a molecule made of two atoms of the same element.

• Diatomic molecule
• Polyatomic molecule

• Hydrate

• Atomic molecule

Chromium(II) Oxide is the name for

• CF

• CrO

• OCr

• MS

Tags

NGSS.MS-PS1-1

A strong force of attraction that holds the atoms of a compound together.

• Chemical bond
• Atomic bond

• Chemical reactions

• Double bonds

Tags

NGSS.HS-PS1-3

How many hydrogen atoms are in the compound Al2(HPO4)3?

Tags

NGSS.MS-PS1-1

What is an expression called that identifies the types and numbers of elements present in a compound?

• Chemical formula

• Chemical compound

Which compound represents a nonpolar molecule: H₂O, CaS, CF₄, or HF?

• H₂O

• CaS

• CF₄

• HF

Larger atoms have a greater electron attraction.

• True

• False

Tags

NGSS.HS-PS1-1