Ionic Formulae

What is the formula for a magnesium ion?

• Mg+

• Mg²⁺

• Mg^2-

• Mg^-

What is the name of this ion? SO₄^2-

• sulfur tetroxide ion

• sulfonate

• sulfate

• sulfide

Which is the correct formula for an ammonium ion?

• NH₄

• NH₄^-

• NH₄²⁺

• NH₄⁺

Which of the following is the correct formula for a sodium ion?

• So⁺

• Na^-

• Na⁺

• Na²⁺

Tags

NGSS.HS-PS1-1

What is the formula for a nitrate ion?

• NO^-

• NO₂^-

• NO₃^-

• NO₄^-

For the following group of ions, choose the 2 answers that contains ions with the wrong charge.

• Li⁺ K⁺ Ag⁺ H⁺

• Ca²⁺ Zn²⁺ Fe²⁺ Al²⁺

• Cl^- Br^- I^- N^-

• O^2- S^2- SO₄^2- CO^2-

What is the formula for lithium bromide?

• LiBr

• LiBr₂

• Li₂Br

• Li₂Br₂

What is the formula for iron(II) oxide?

• FeO₂

• FeO

• Fe₂O

• Fe₂O₃

Tags

NGSS.HS-PS1-2

What is the formula for iron(III) chloride?

• FeCl

• Fe₃Cl

• FeCl₂

• FeCl₃

Tags

NGSS.MS-PS1-1

What is the formula for aluminium hydroxide?

• AlOH

• AlOH₃

• Al(OH)₃

• (Al)₃OH