U2B Chemical bonds

Why do atoms bond?

• to find a date

• to become bigger

• to release energy

• to become stable

An ionic bond forms when 

• Valence electrons are shared
• a sea of mobile electrons surround the cations
• valence electrons are transferred between atoms
• none of the above

Tags

NGSS.MS-PS1-5

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.MS-PS1-1

Where are metals located on the periodic table?

• Blue
• Green
• Red

Tags

NGSS.HS-PS1-1

Where are the nonmetals located on the periodic table? 

• Blue
• Red
• Green

Tags

NGSS.HS-PS1-1

What elements generally make an ionic bond?

• metal and nonmetal

• 2 nonmetals

• 2 metals

• none of the above

What elements generally make a covalent bond?

• metal and nonmetal

• 2 nonmetals

• 2 metals

• none of the above

What type of bond is shown in the image?

• Hydrogen

• Ionic

• Covalent

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