Chemical Bonding Test

Ionic bonds are formed when electrons get

• Shared between two atoms

• Removed from both atoms

• Transferred from one atom to another

• Added to both atoms

Ionic bonds typically form between

• A metal and a nonmetal

• Two nonmetals

• Two metals

• A metalloid and a metal

Tags

NGSS.HS-PS1-3

Metals (like Na) typically _____ electrons in the formation of ionic bonds.

• Gain

• Lose

• Keep the same

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Nonmetals (like Cl) typically ____ electrons when they form ionic bonds.

• Gain

• Lose

• Keep the same

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionic bond exists between elements of high difference in electronegativity. For example:

• Nitrogen and Oxygen

• Carbon and Oxygen

• Sodium and Chlorine

• Hydrigen and Hydrogen

Tags

NGSS.HS-PS1-3

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

Tags

NGSS.HS-PS1-1

Dipole-Dipole forces are stronger than _______ and weaker than _________ interactions.

• van der waals; hydrogen bonding

• hydrogen bonding, van der waals

• ion-dipole, london dispersion

Hydrogen bonding is a special case of __________.

• london dispersion

• ion-dipole

• dipole-dipole

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.

Tags

NGSS.HS-PS1-3

The weaker the intermolecular forces of a substance the _____________ the boiling point

• higher

• lower

Tags

NGSS.HS-PS1-3