What is the correct term for "bond that forms when electrons are shared"?

• ionic bond
• metallic bond
• covalent bond

What is the term for "bond that forms between a metal and a nonmetal"?

• ionic bond
• metallic bond
• covalent bond

What is the name for an element that has lost electrons?

• cation
• anion

Atoms want _____ electrons in their valence (outermost) shell. 

• 1
• 2
• 6
• 8

Tags

NGSS.HS-PS1-1

If a neutral atom gains electrons, the charge becomes

• negative
• positive

Carbon has 4 valence electrons. How many electrons does carbon need to fill its shell?

• 2
• 4
• 8
• 0, it is already full

Which of the following formulas represents carbon monoxide?

• CO
• CO₂
• NO
• SO₂

Tags

NGSS.MS-PS1-1

Which of the following formulas represents carbon monoxide?

• CO
• CO₂
• NO
• SO₂

Tags

NGSS.MS-PS1-1

Which compound contains covalent bonds?

• NaI
• K₂O
• N₂O₃
• BeO

Covalent bonds form between 

• nonmetal and metal
• metal and metal 
• nonmetal and nonmetal

Tags

NGSS.HS-PS1-1