Unit 3 Review

Which of the following could NOT form an ionic compound? Check all that apply.

• Li⁺ and Cl^-

• F^- and O^2-

• Ba²⁺ and Ag⁺

• Mg²⁺ and S^2-

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-2

Which of the following could form an ionic compound? Check all that apply.

• Na⁺ and F^-

• S^2- and O^2-

• Ca²⁺ and Fe³⁺

• Mg²⁺ and Cl^-

Tags

NGSS.HS-PS1-3

In an ionic bond, the ions are held together because...

• the positive nucleus of each ion attracts the other ion's negatively charged electrons

• the ions have opposite charges

• as the electron moved from one atom to another it pulled the atom along with it

• electrons are being shared

Tags

NGSS.HS-PS1-3

Which element(s) will lose valence electrons to form an ion? Check all that apply.

• Phosphorus

• Iron

• Barium

• Neon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element(s) will form negative ions? Check all that apply.

• Potassium

• Sulfur

• Iodine

• Magnesium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following pairs of elements could NOT react to form an ionic compound?

• Carbon and Oxygen

• Potassium and Fluorine

• Silver and Oxygen

• Aluminum and Chlorine

Calcium Fluoride has a chemical formula of CaF₂. What does the chemical formula tell you?

• There are 2 Calcium ions for every 1 Fluoride ion in the crystal

• There is 1 Calcium ion for every 2 Fluoride ions in the crystal

Tags

NGSS.MS-PS1-1

Atoms form ions because they want to have a ____ outer shell.

• full

• empty

• colorful

• half full

Ionic bonds are formed between...

• Non - metals

• A metal and a non-metal

• Metals

How is an ionic bond formed?

• Sharing of electrons

• Delocalised electrons

• Transfer of electrons