Ionic and Molecular Compounds

Metals and Non-Metals

100

This is the only non-metal in Group I.

What is hydrogen?

200

B, Si, As, Ge, Sb, Te, Po, At are located on the "staircase", where elements are officially called these.

What are metalloids?

300

Non-metals are located in this "block" of the Periodic Table, named after the orbital that additional electrons fill.

What is the p-block?

400

Collectively known as the f-block, these elements are almost always drawn as an isolated two rows below the "main" Periodic Table.

What are lanthanides and actinides?

500

Metals in Group I and Group II have this name in their description: Group I is the "regular" variety, and Group II is the "earth" variety.

What is alkali?

Ions and Ionic Charges

100

He, Ne, Ar, Kr, Xe, Rn, and Og almost always have this charge.

What is 0?

200

Elements in this group usually have a charge of -2.

What is Group VI?

300

This is the name for an ion that has a positive charge. One way to remember this is that one of the letters looks like a symbol that means "positive".

What is a cation?

400

This is the name for an ion that has a negative charge.

What is an anion?

500

Group VII elements (the ones with a charge of -1) are also known by this informal name, which comes from the Greek for "salt".

What are halogens?

Ionic Compounds

100

When you combine a cation with an anion to make an ionic compound, their charges should add up to this number.

What is 0?

200

This is the name of the compound with the formula NaBr.

What is sodium bromide?

300

This is the formula for aluminum oxide.

What is Al₂O₃?

400

This is the chemical formula for copper (I) oxide.

What is Cu₂O?

500

This is the name of the compound with the formula FeO.

What is iron (II) oxide? (Make sure to emphasize the II)

Polyatomics

100

Ions with "ite" and "ate" in their names differ in how many of this element appear in the formula.

What is oxygen?

200

This is the name of the ion with the formula NH₄⁺.

What is ammonium?

300

This is the formula for the hydroxide ion.

What is OH^-?

400

This is the formula for calcium carbonate.

What is CaCO₃?

500

This is the formula for calcium nitrate.

What is Ca(NO₃)₂ ?

Molecular Compounds

100

This is the type of bond shared by most molecular compounds.

What is covalent?

200

This is the compound with the formula BF₃.

What is boron trifluoride?

300

This is the name of the compound with the formula CO.

What is carbon monoxide?

400

This is the formula with the formula N₂O₅.

What is dinitrogen pentoxide?

500

This prefix may show up in the second element, but never shows up in the first element.

What is mono?