Bonding and Nomenclature

Bonding

100

How many bonds can phosphorus form?

3

200

Which type of bond shares electrons equally?

Nonpolar Covalent

300

A triple bond is the sharing of ___ electrons.

6

400

Draw a Lewis structure for NF₃. Include full or partial charges in your drawing.

   ..

F-N-F

   l

   F

F is partially negative, N is partially positive

500

Draw the compound between Al and Cl using Lewis structures.

Include full or partial charges in your drawing and write the formula for the compound.

Cl^-1 -> Al⁺³ <-Cl^-1

           ^

            l

            Cl^-1

Molecular Geometry

100

O=C=O

1. Name the shape of this molecule. 

2. Is the molecule polar or nonpolar?

1. Linear

2. nonpolar

200

How many lone pairs are on the central atom in H₂S? Include the Lewis structure in your answer.

2

300

1. What is the shape of CF₄? 

2. Does it contain polar or nonpolar bonds? 

3. Is the molecule polar or nonpolar?

1. tetrahedral

2. polar

3. nonpolar

400

What two shapes are always polar?

pyramidal and bent

500

1. What is the shape of BH₂F? 

2. Is the molecule polar or nonpolar?

1. Trigonal planar

2. polar

Naming Ionic and Covalent Formulas

100

C₃H₈

1. Is it ionic, covalent, or organic?

2. Name it.

1. covalent

2. tricarbon octahydride

200

CaCl₂

1. Is it ionic or covalent?

2. Name it.

1. ionic

2. calcium chloride

300

Cl₂O

1. Is it ionic or covalent?

2. Name it.

1. covalent

2. dichlorine monoxide

400

Sr₃(PO₄)₂

1. Is it ionic or covalent?

2. Name it.

1. ionic

2. strontium phosphate

500

Fe₃N

1. Is it ionic or covalent?

2. Name it.

1. ionic

2. iron (I) nitride

Writing Ionic and Covalent Formulas

100

dinitrogen pentasulfide

1. Is it ionic or covalent?

2. Write the formula

1. covalent

2. N₂S₅

200

sodium chromate

1. Is it ionic or covalent?

2. Write the formula.

1. Ionic

2. Na₂CrO₄

300

ammonium iodide

1. Is it ionic or covalent?

2. Write the formula.

1. Ionic

2. NH₄I

400

phosphorus tetroxide

1. Is it ionic or covalent?

2. Write the formula.

1. covalent

2. PO₄

500

manganese (VI) oxalate

1. Is it ionic or covalent?

2. Write the formula.

1. ionic

2. Mn(C₂O₄)₃

Miscellaneous

100

What is the charge of a magnesium ion? Is it a cation or anion?

Mg⁺²; cation

200

What type of compounds have arrows and charges in the Lewis Dot Structure?

Ionic

300

What types of elements are usually found in ionic compounds?

A metal and a nonmetal

400

When are Roman numerals required in naming?

When a transition metal is used.

500

What is the longest and weakest covalent bond?

Single bonds