Quiz 18A

Covalent compounds

• Share electrons

• gain or lose electrons

• contain a sea of electrons

• conduct electricity

Tags

NGSS.HS-PS1-2

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Tags

NGSS.MS-PS1-1

Which elements tend to lose electrons?

• metals

• nonmetals

• noble gases

• halogens

How many electrons are needed in the outer energy levels of most atoms to be stable?

• 2

• 4

• 6

• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Why do elements form bonds?

• To become more stable

• To become more reactive

• To become neutrally charged

• To shed excess electrons

Tags

NGSS.HS-PS1-2

How are ionic bonds formed?

• Nearly equal electronegativities

• Sharing of electrons

• losing and gaining electrons

• Cations surrounded by free electrons

Tags

NGSS.HS-PS1-2

There are more metals than non metals in the periodic table.

• True
• False

Which Lewis Dot Model drawing correctly shows an O₂ molecule?

• 
• 
• 
• 

Which of these is incorrect?

• 
• 

Tags

NGSS.HS-PS1-1

Which is the correct molecular structure for carbon dioxide?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1