CP - U6 Review Questions

How many valence electrons for Ca?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-1

How many valence electrons for S?

• 8
• 7
• 6
• 4

Tags

NGSS.HS-PS1-1

How many valence electrons does an atom need to have a stable electron configuration?

• 2

• 4

• 6

• 8

Tags

NGSS.HS-PS1-1

If an atom does not have a stable octet, what will it do?

• form bonds with other atoms
• nothing
• fall apart
• gain or lose protons

What ion does a sulfur atom form

• +1
• +2
• -1
• -2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What will be the chemical formula for 
K⁺¹ and Cl^-1

• KCl
• K₂Cl
• KCl₂
• KCl₃

What will be the chemical formula for 
Li⁺¹ and S^-2

• LI₂S
• LiS₂
• LiCl
• Li₃Cl

What will be the chemical formula for 
Ca⁺²  and Br^-1

• CaBr₂
• Ca₂Br
• CaBr
• CaBr₃

What are electrons in the outermost energy level called?

• valence electrons
• bonus electrons
• protons
• orbitals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What ion does a Ca atom form

• +1
• +2
• -1
• -2