1B Review

Which of the following is an Alkali Metal? 

• Magnesium
• Chromium
• Sodium
• Fluorine 

Which of the following is an Alkaline Earth Metal? 

• Calcium
• Lithium
• Phosphorus
• Copper 

Which of the following is a transition metal? 

• Iron
• Oxygen
• Neon
• Barium

Which of the following is a Halogen? 

• Bromine
• Rubidium
• Argon
• Beryllium

Which of the following is a Noble Gas? 

• Krypton
• Chlorine
• Radium
• Gallium

Which of the following is the most reactive group of metals? 

• Alkali
• Alkaline Earth
• Halogen
• Transition Metals

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Which of the following groups is inert? 

• Alkali
• Transition Metals
• Halogens
• Noble Gas

The formula for Copper (1) Sulfide is...

• Cu₁S₂

• CuS

• Cu₁S

• Cu₂S

The formula for Chromium (III) Selenide is...

• Cr₂Se₃

• Cr₃Se₂

• Cr₃S

• CrS

The formula for Nickel (II) Oxide is...

• Ni₂O₂

• NiO₂

• NiO

• Ni₂O

Answer explanation

Remember: Ni₂O₂ is not correct because your answer should be in its most reduced form: NiO.