Free Printable Elements and compounds 9th-grade

1.

The atomic number tells you what?

a)

number of electrons

b)

number of protons

c)

number of neutrons

d)

both electrons and protons in an atom.

2.

Which group of the periodic table is composed of inert (not reactive) gases?

a)

alkali metals

b)

alkaline earth metals

c)

halogens

d)

noble gases

3.

Which is the correct formula for:
one carbon (C)
two oxygen (O)

a)

CO₂

b)

CO

c)

C₂O

d)

2CO

4.

How many different elements are in H₂O?

a)

1

b)

2

c)

3

d)

4

5.

The number at the top of each square on the periodic table is the ...

a)

atomic number

b)

atomic mass

c)

Chemical Symbol

d)

Element Name

6.

What is Fe₂O₃
(rust) made up of?

a)

1 flourine, 2 einsteinium,
3 oxygen

b)

2 fluorine, 3 oxygen

c)

2 iron, 3 oxygen

d)

2 iron, 3 osmium

7.

If you have a material that can conduct electricity well it is probably a...

a)

Metalloid

b)

Matter

c)

Non-metal

d)

Metal

8.

How would this element be classified?

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Metamorphic

9.

What element has the symbol Ca?

a)

Californium

b)

Calcium

c)

Carbon

d)

Copper

10.

What element has the atomic number 23?

a)

Na (Sodium)

b)

Th (Throrium)

c)

Sc (Scandium)

d)

V (Vanadium)

11.

What element has the symbol Cn?

a)

Curium

b)

Copernicium

c)

Carbon

d)

Cobalt

12.

What element has the symbol Br?

a)

Boron

b)

Beryllium

c)

Bromine

d)

Bohrium

13.

What element has the symbol H?

a)

Hassium

b)

Hydrogen

c)

Holmium

d)

Hafnium

14.

What element has the symbol Ac?

a)

Actinium

b)

Astatine

c)

Arsenic

d)

Aluminium

15.

What is the symbol for Iron?

a)

Fl

b)

Fm

c)

I

d)

Fe

16.

What is the element with the atomic number equal to 36?

a)

F

b)

Kr

c)

Os

d)

Sr

17.

What is the mass number of Mn?

a)

4

b)

7

c)

25

d)

55

18.

Sn

a)

tin

b)

sulfur

c)

iron

d)

sodium

19.

Zinc

a)

Z

b)

Zi

c)

ZN

d)

Zn

20.

Sulfur

a)

Sf

b)

Su

c)

Sr

d)

S

21.

Neon

a)

N

b)

No

c)

Ne

d)

Nn

22.

Calcium

a)

Cl

b)

Ca

c)

C

d)

Cm

23.

Copper

a)

CU

b)

Cp

c)

Cu

d)

Cr

24.

Helium

a)

He

b)

Hl

c)

HE

d)

Hm

25.

Hydrogen

a)

Hy

b)

H

c)

Hr

d)

Hn

26.

N

a)

Sodium

b)

Nitrogon

c)

Nonium

d)

Nitrogen

27.

Gold

a)

Go

b)

Gl

c)

AU

d)

Au

28.

Pb

a)

Gold

b)

Lead

c)

peanut butter

d)

Paribium

29.

Iron

a)

Ir

b)

In

c)

Fe

d)

FE

30.

Nickel

a)

Ni

b)

N

c)

Nl

d)

Nc

31.

Mercury

a)

Me

b)

Hg

c)

HG

d)

ME

32.

Iodine

a)

Ie

b)

I

c)

Id

d)

Io

33.

Potassium

a)

P

b)

K

c)

Pt

d)

k

34.

Aluminum

a)

A

b)

Al

c)

Am

d)

Au

35.

Mg

a)

Manganese

b)

Mangium

c)

Magnesium

d)

Manzanium

36.

Xenon

a)

Xe

b)

X

c)

Xn

d)

Xo

37.

The positive particles of an atom are

a)

electrons

b)

positrons

c)

neutrons

d)

protons

38.

Particles in an atom that are neutral and have no charge are

a)

negatrons

b)

electrons

c)

neutrons

d)

protons

39.

What is the atomic number of an element with three protons?

a)

2

b)

1

c)

3

d)

6

40.

The subatomic particle with a negative charge is the

a)

electron

b)

proton

c)

neutron

d)

nucleus

41.

What does the atomic number represent?

a)

the number of protons and usually electrons too

b)

the number of protons and neutrons

c)

the number of neutrons

42.

How many protons does the element in this image contain?

a)

14

b)

7

c)

15

d)

18

Elements and compounds 9th-grade

Total questions: 42

Worksheet time: 12mins

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