Unit 6 Review

Ionic Bonds 1

100

Which category of elements form cations? 

metals 

200

What is the charge of a nitrogen ion?

N^3-

300

This ions name is: (PO₄^3-)

Phosphate

400

Predict the formula for the compound that forms between: Calcium ion and Nitrogen ion

Ca₃N₂

500

Predict the formula for the compound that forms between: Strontium ion and Oxygen ion

SrO

Ionic Bonds 2

100

An ionic bond is formed between which two categories of elements?

metal and non metal

200

True or False: Ionic bonds have higher melting points than covalent bonds. 

True

300

ionic compounds are generally in which physical state at room temperature?

solid

400

MC. what of the following compounds contain a Al³⁺ ion?

a. AlBr₂

b. Al₂S₃

c. AlF

d. Al₃N₂

B

500

MC. Which of the following is likely to have a high melting point?

a. CO₂

b. H₂O

c. SrCl₂

d. CH₄

C

Covalent Bonds

100

a covalent bond is formed between which two categories of elements?

a non metal and another non metal

200

What is the correct formula for triphosporhus hexaoxide?

P₃O₆

300

Which diatomic element forms a double bond?

O₂

400

How many electron pairs are shared in a double covalent bond?

two

500

MC. Which of the following is not likely to conduct an electrical current?

a. SrCl₂

b. BaO

c. NaCl

d. CH₄

D

Lewis Structures

100

When forming covalent bond and writing the lewis structure, the goal is to make every atom fill the "blank" rule.

octet

200

How many total valence electrons does NO₃ have?

23 valence electrons

300

When forming a bond in a neutral molecule, oxygen will form how many bonds and have how many lone pairs?

2 bonds, 2 lone pairs

400

How many total valence electrons does Selenium Tetrachloride have?

34 valence electrons

500

What is the lewis structure for CH₄?

see drawing

Miscellaneous

100

MC. Which element would have the greatest electronegativity?

a. N

b. O

c. F

C

200

How many Protons and Electrons are in a neutral silicon atom (atomic number 14).

14 p+ 14 e-

300

Which what causes a particular chemical compound to more polar than another?

greater difference in electronegativity (polarity)

400

What is the electron configuration of Magnesium?

1s2 2s2 2p6 3s2

500

Which type of compound is SrSO₄?

ionic