Ionic vs. Covalent Bonding

All atoms/elements bond in order to ....

• Have a full valence shell
• Give away electrons or take electrons
• Only share electrons
• To create electrical currents for human use 

Tags

NGSS.HS-PS1-2

What kind of bond forms when atoms share electrons?

• Chemical bond
• Ionic bond
• Covalent bond
• Electron bond

What kind of chemical bond forms between a metal and a nonmetal?

• Covalent bond
• Ionic bond
• Can be either covalent or ionic
• Hydrogen bond

Tags

NGSS.HS-PS1-1

Why does K become positive when it bonds to Cl to form KCl?

• Because it loses an electron to have a full valence shell 
• Because it gains an electron to have 2 valence electrons
• Because it loses an electron to become negatively charged
• Because Cl gives away its 7 electrons to Na to form an equal charge 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why does NaCl have different charges? 

• The metal gives away an electron to the nonmetal
• The metal takes the electron from the nonmetal
• The metal and the nonmetal equally share electrons
• The nonmetal gives away its electrons to the metal 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which Compound would be classified as a covalent bond? 

• CaCl₂
• P₂O₅
• KI
• MgO

Predict the bond that will form between Be and F.

• Ionic
• Covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Predict the bond that will form between Se and Cl.

• Ionic
• Covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of these is covalent?

• NaCl
• Pb(NO₃)₂
• CO₂
• AlCl₃

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Magnesium sulfate (MgSO₄₎ is used in fertilizers.

• Ionic
• Covalent

Tags

NGSS.HS-PS1-2