PS 6.2 Formative

A ______ bond is a chemical bond in which two atoms share a pair of valence electrons.

Attractions between polar molecules are stronger than attractions between nonpolar molecules.

• true

• false

Many nonmetals exist as diatomic molecules. The word "diatomic" means two

• atoms

• molecules

• ions

• bonds

Tags

NGSS.MS-PS1-1

How many pairs of ELECTRONS would be shared in a molecule of nitrogen (N₂ )?

Tags

NGSS.HS-PS1-1

What kind of bond do two nonmetals form?

• ionic

• covalent

• nuclear

• metallic

A _____ is a neutral group of atoms that are joined together by one or more covalent bonds.

Tags

NGSS.MS-PS1-1

Atoms in a covalent bond are held together by the attractions between the neutrons is each nucleus and the shared electrons.

• true

• false

A covalent bond in which electrons are not shared equally is called a _____.

• bipolar covalent bond

• polar covalent bond

• diatomic ionic bond

• positive covalent bond

How many pairs of electrons would be shared in a molecule of oxygen (O₂)?

When two fluorine atoms share a pair of electrons, the bond that forms is a

• polar covalent bond

• nonpolar covalent bond