Free Printable RADICALS

1.

Negatively charged Radicals are called

a)

Acidic radical

b)

Basic radical

c)

Ion radical

2.

Positively charged radical

a)

Acidic radical

b)

Basic radical

c)

Ion radical

3.

Acidic radical is also called

a)

Anion

b)

Cation

c)

Ion

4.

How many types of radicals are there

a)

6

b)

2

c)

8

5.

Can radicals have independent exsistant

a)

No

b)

Yes

6.

What charge does a potassium (K) ion have?

a)

+1

b)

-1

c)

+2

d)

-2

7.

Name that Ion
Li+

a)

copper (III)

b)

lithium

c)

ladmium

d)

iodine

8.

Outer shell electrons are called

a)

outer electrons

b)

valence electrons

c)

negatives

9.

The electrons involved in chemical bonds are called ___________ electrons.

a)

valence

b)

ionic

c)

Van Der Waals

d)

covalent

10.

What is a valence electron?

a)

Electrons in the first energy shell

b)

Electrons in the second energy shell

c)

Electrons in the outer shell

d)

Total number of electrons

11.

The innermost energy level has a maximum of how many electrons?

a)

1

b)

2

c)

6

d)

8

12.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

13.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

14.

√1

a)

4

b)

1

c)

6

d)

no solution

15.

The Latin name of Silver is :

a)

Argantum

b)

Argentam

c)

Argentum

d)

Argentom

16.

Co represents :

a)

Carbon monoxide

b)

Carbon dioxide

c)

Cobalt

d)

Calcium

17.

The atomicity of sulphur in solid sulphur is :

a)

4

b)

6

c)

7

d)

8

18.

The valency of Ar is :

a)

0

b)

1

c)

2

d)

3

19.

Ammonia is a compound of:

a)

Carbon

b)

Aluminium

c)

Iron

d)

Nitrogen

20.

The representation for sulphate ion is

a)

SO42-

b)

SO3-

c)

SU2-

d)

All

21.

The representation for nitrate ion is ——-

(a)

22.

The representation for nitrite ion is

(a)

23.

Formula of iron(III) hydroxide is

(a)

24.

Element represented by Sn is

(a)

25.

The atom or group of atom carrying either positive or negative charges are commonly known as

a)

Cation

b)

Anion

c)

Valency

d)

Radicals

26.

The charge present on phosphate radical is

a)

-3

b)

-4

c)

-2

d)

-5

27.

The valency of phosphorous in PCl₃and PCl₅is

a)

3 & 5

b)

5 & 3

c)

5 only

d)

3 only

28.

2 H and H₂ stands for ___ and ___ respectively of hydrogen

a)

2 atoms

b)

2 atoms and 2 molecules

c)

2 atoms and 1 molecule

d)

2 molecules

29.

What is the valency of Sulphite

a)

-1

b)

+1

c)

-2

d)

-3

30.

What is the formula of ammonium radical

a)

NH₃

b)

NH

c)

NH₃⁺

d)

NH₄⁺

31.

The image shows the periodic grid for POTASSIUM. What is Potassium's atomic number?

a)

19

b)

39

c)

20

d)

Impossible to tell

32.

What is the chemical symbol for Potassium?

a)

P

b)

K

c)

Po

d)

Pt

33.

What element has the chemical symbol Ca?

a)

Calcium

b)

Carbon

c)

Caesium

d)

Californium

34.

What element has the chemical symbol Au?

a)

Silver

b)

Lead

c)

Gold

d)

Actinium

35.

What element has the chemical symbol N?

a)

nitrogen

b)

nobelium

c)

sodium

d)

nitrate

36.

What is the chemical symbol for mercury?

a)

Hg

b)

Mc

c)

My

d)

C

37.

What element has the chemical symbol As

a)

Argon

b)

Astatine

c)

Arsenic

d)

Antimony

38.

Which element had the original name 'plumbum"?

a)

Lead

b)

Platinium

c)

Plutonium

d)

Uranium

39.

Which of the following is NOT a noble gas?

a)

Helium

b)

Xenon

c)

Oxygen

d)

Neon

40.

what charge will an aluminum ion have?

a)

3+

b)

2+

c)

2-

d)

3-

41.

How many valence electrons does magnesium have?

a)

1

b)

2

c)

12

d)

24

42.

How many valence electrons does Carbon have?

a)

4

b)

12

c)

6

d)

14

43.

If an atom has 3 valence electrons, what charge will it have as an ion?

a)

+3

b)

-3

c)

+5

d)

-5

RADICALS

Total questions: 43

Worksheet time: 20mins

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