Ionic Formula Writing

What is the charge on the iron in: iron (II) oxide

• 2+

• 2-

• 1+

• 1-

• None of these.

Ionic compounds generally form when ____________ and ________________ react with each other.

• nonmetals and nonmetals
• metals and metals
• metals and nonmetals
• polyatomic elements & nonmetals

What is the formula for for an ionic compound made up of Mn⁺³ and O^2-?

• MgO

• Mg₂O₃

• MnO

• Mn₂O₃

Tags

NGSS.MS-PS1-1

What is the formula of calcium phosphate made up of Ca⁺² and PO₄^3-?

• CaPO₄

• Ca₂(PO₄)₃

• Ca₃PO₄

• Ca₃(PO₄)₂

What is the correct formula for the compound, lithium oxide?

• LiO
• Li₂O
• LiO₂
• Li₂O₂

What is the formula for manganese(III) oxide?

• MgO
• Mg₂O₃
• MnO
• Mn₂O₃

How many valence electrons are in an atom of phosphorus (P)?

• 5
• 4
• 3
• 2

Tags

NGSS.HS-PS1-1

What is the formula for: silver oxide

• AgO₂

• AgO

• Ag₂O

• SiO₂

• None of these.

Tags

NGSS.MS-PS1-1

A negatively-charged ion.

• atom
• cation
• anion
• electron

Metals tend to _____ electrons to form _______; nonmetals tend to _____ electrons to form ________.

• lose, cations ;   lose, anions
• gain, cations ;    lose, anions
• gain, anions ;    gain, cations
• lose, cations ;     gain, anions

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2