Chemical Bonds Properties

The outermost electrons are called the __________ electrons.

• reacting

• outside

• valence

• contact

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which are weaker?

• ionic bonds

• covalent bonds

What type of elements form covalent bonds?

• Metals

• Non Metals

• Metalloids

• Nobel Gas

When a covalent bond forms _______________ are shared.

• protons

• nutrons

• valence electrons

• quarks

An atom of nitrogen (N) has _______ open bonding sites.

• 5

• 4

• 3

• 8

Tags

NGSS.HS-PS1-1

Polar molecules form due to ___________ sharing of valence electrons.

• equal

• unequal

• greater

• group

Tags

NGSS.HS-PS2-6

A triple covalent bond forms when two atoms share ____________.

• 2 pair of electrons

• 4 total electrons

• 3 pair of electrons

• 3 total electrons

Which statement best describes the relationship between atoms & molecules.

• molecules are made of atoms that are chemically bonded together.

• atoms are made of molecules that are chemically bonded together.

• molecules are made of a mixture of atoms and compounds.

• atoms are made of protons, neutrons & electrons.

Tags

NGSS.MS-PS1-1

Which statement describes the model that shows a compound.

• Model X shows a compound because there are two different types of atoms

• Model X shows a compound because two different atoms are chemically bonded together.

• Model Y dhows a compound because there is more than one type of atom.

• Model Y shows a compound because each pair of matching atoms can form a chemical bond.

Tags

NGSS.MS-PS1-1

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1