Chemical Bonds

Ionic bonds are between...

• nonmetals and nonmetals
• carbon and oxygen
• metals and nonmentals
• hydrogen and chlorine

Covalent bonds are between...

• two or more nonmetals
• sodium and chlorine
• metals and metals
• metals and nonmetals

Tags

NGSS.MS-PS1-1

What is the name for an ion with a positive charge?

• cation
• anion
• onion
• union

What is the name for an ion with a negative charge?

• cation
• anion
• onion
• union

What kind of bond forms when atoms share electrons?

• ionic
• covalent
• artificial
• univalent

Tags

NGSS.HS-PS1-2

What kind of bond forms when atoms exchange electrons?

• ionic
• covalent
• artificial
• univalent

What are valence electrons?

• sum of the protons and neutrons
• protons minus electrons
• electrons in the inner shells
• electrons in the outer shell

Tags

NGSS.HS-PS1-1

If an atom loses two electrons what charge will it have?

• -2
• -1
• +1
• +2

Tags

NGSS.HS-PS1-1

How many valence electrons does oxygen have?

• 2
• 4
• 5
• 6

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

NGSS.HS-PS1-2