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chooic3 boad

Total questions: 37

Worksheet time: 23mins

Name
Class
Date
1.

What elements generally make an ionic bond ?

a)

Metal and nonmetal

b)

2 or more nonmetals

c)

2 or more metals

d)

2 elements

2.

An ionic bond is formed when

a)

Valence electrons are shared.

b)

Valence electrons surround the cations.

c)

Valence electrons are transferred between atoms.

d)

Valence electrons are completely transferred between two metals.

3.

What is a valence electron?

a)

an electron that is found in the outermost shell of an atom

b)

an electron found in the innermost shell of an atom

c)

an electron found in the middle shell

d)

an electon found in the nucleus

4.

What is the number of valence electrons of Oxygen?

a)

1

b)

2

c)

6

d)

8

5.

What is the number of valence electrons of Neon?

a)

6

b)

7

c)

8

d)

9

6.

What type of diagram is this?

a)

Alkali Diagram

b)

Bohr Model

c)

Chemical Diagram

d)

Electron Dot Diagram

7.

How many valence electrons in this structure ?

a)

4

b)

5

c)

6

d)

7

8.

The three dots in the Lewis dot diagram for boron indicate that it

a)

Can bond with three other atoms

b)

Can only form triple covalent bonds

c)

Has three valence electrons

d)

scores a 3 on Pauling's electonegativity scale

9.

Predict the bond formed between Be and F

a)

Covalent-bond

b)

Ionic-bond

c)

Metallic-bond

d)

Hydrogen-bond

10.

ข้อใดคือชื่อที่ถูกต้องของสารประกอบ N2O

a)

nitrogen dioxide

b)

dinitrogen oxide

c)

mononitrogen dioxide

d)

dinitrogen monoxide

11.
In an electron dot diagram, two pairs of shared electrons represents a ...
a)
single bond
b)
double bond
c)
triple bond
d)
quadruple bond
12.
How do covalent bonds form?
a)
Donating & receiving valence e- between atoms.
b)
Opposite slight charges attract each other between compounds.
c)
Scientists are still not sure how they form.
d)
Sharing valence e- between atoms.
13.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
14.
What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force
15.
What type of bond is shown in this image?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force
16.

How many VALENCE ELECTRONS does Chlorine have?

a)

2

b)

7

c)

8

d)

10

e)

17

17.

Ionic bonds are formed when electrons get

a)

Shared between two atoms

b)

Removed from both atoms

c)

Transferred from one atom to another

d)

Added to both atoms

18.

How many VALENCE ELECTRONS does Chlorine have?

a)

2

b)

7

c)

8

d)

10

e)

17

19.

Ionic bonds are formed when electrons get

a)

Shared between two atoms

b)

Removed from both atoms

c)

Transferred from one atom to another

d)

Added to both atoms

20.

Ionic bonds typically form between

a)

A metal and a nonmetal

b)

Two nonmetals

c)

Two metals

d)

A metalloid and a metal

21.

What is the correct formula for Sodium Chloride?

a)

SCl

b)

NaCl

c)

SC

d)

NaCl2

22.

Name this ionic compound: Al2O3

a)

Dialuminum oxide

b)

Aluminum oxygen

c)

Oxygen Aluminide

d)

Aluminum oxide

23.

If you were to draw the lewis dot structure for Germanium (Ge), how many dots would you put around it?

a)

2

b)

4

c)

6

d)

8

24.

Cations _______ electrons, becoming _______ charged.

a)

Gain; positively (+)

b)

Gain; negatively (-)

c)

Lose; positively (+)

d)

Lose; negatively (-)

25.

Anions ____ electrons, becoming _____ charged.

a)

Gain; positively (+)

b)

Gain; negatively (-)

c)

Lose; positively (+)

d)

Lose; negatively (-)

26.

Write the chemical formula for K and Br (potassium bromide).

a)

KBr

b)

K2Br

c)

KBr3

d)

KBr2

27.

Write the chemical formula for Na and S (sodium sulfide).

a)

NaS

b)

S2S2

c)

Na2S

d)

NaS2

28.

Metals (like Na) typically _____ electrons in the formation of ionic bonds.

a)

Gain

b)

Lose

c)

Keep the same

29.

Nonmetals (like Cl) typically ____ electrons when they form ionic bonds.

a)

Gain

b)

Lose

c)

Keep the same

30.

Using the model for the formation of Scandium Fluoride (an ionic compound), write the chemical formula.

a)

Sc3F

b)

Sc3F3

c)

Sc+3F-1

d)

ScF3

31.

Lead Chloride is an ionic compound, made up from Pb2+ ions and Cl- ions. Which is the correct formula for this compound?

a)

PbCl3

b)

PbCl

c)

PbCl4

d)

PbCl2

32.

Magnesium Hydroxide is an ionic compound made up from Mg2+ and OH- ions. Which is its correct formula?

a)

MgOH

b)

MgOH2

c)

Mg(OH)2

d)

MgO

33.

The correct name for Cu(CN)2 is __.

a)

copper (I) cyanide

b)

carbon cyanide

c)

carbon carbonate

d)

copper (II) cyanide

e)

copper (I) nitride

34.

The name of the compound (NH4)3PO4 is:

a)

tetrammonium phosphate

b)

ammonium phosphate

c)

nitrogen hydrogen phosphate

d)

ammonia phosphide

e)

triammonium phosphate

35.

What is the correct formula for aluminum hydroxide?

a)

AlOH

b)

Al2(OH)3

c)

Al3(OH)2

d)

Al(OH)3

e)

Al(OH)2

36.

In the compound CoSO4, what is the charge on cobalt?

a)

+4

b)

+2

c)

-2

d)

-1

37.

What is the correct name for Ni2(SO4)3

a)

Nickel (I) sulfide

b)

Nickel (II) sulfate

c)

Nickel (III) sulfate

d)

Nickel (III) sulfite

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