Ionic vs Covalent

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

MgCl₂

• Ionic
• Covalent
• Polyatomic Ion
• Metallic 

Tags

NGSS.HS-PS1-1

CO₂

• Ionic
• Covalent
• Polyatomic Ion 
• Metallic 

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-4

The octet rule means that all valence shells want to have the number...... 

• 1
• 9
• 8
• 16

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

In an ionic bond the metal wants to ______ electrons.

• lose

• gain

• share

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When a metal loses an electron(s) it becomes a ...

• positive ion

• negative ion

• metalloid

• nonmetal

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In an ionic bond the non-metal wants to ______ electron(s).

• lose

• gain

• share

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When a non-metal gains an electron it becomes a...

• positive ion

• negative ion

• metalloid

• metal

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In a covalent bond both non-metals _____ electrons.

• transfer

• share

Tags

NGSS.HS-PS1-2