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

• So⁺

• Na^-

• Na⁺

• Na²⁺

Tags

NGSS.HS-PS1-1

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

The formula of this atom when it becomes an ion would be

• N^-2
• N⁺³
• N^-3
• N⁺²

Tags

NGSS.MS-PS1-1

An atom that has lost or gained electrons; an atom with a charge.

• cation
• anion
• isotope
• ion

Na ⁺  and  S ^-2

• Na₂S
• NaS₂
• Na₂S₂
• NaS

Tags

NGSS.MS-PS1-1

K ⁺  and  N^-3

• KN
• KN₃
• K₃N₃
• K₃N

Tags

NGSS.MS-PS1-1