Interactive Chemistry Worksheets for Students

 

Periodic table

Naming compounds

Basic formula

Simple compounds

Ionic compounds 1

Ionic compounds 2

Chemical suffixes

Old chemical names

Hydrocarbons - Alkanes

Alkanes, alkenes & alkynes

Alkanols to alkanoic acids

 

Common compounds

Common formula quiz

Acids, bases and salts

Covalent compounds

Printable worksheets
 

 

Periodic table - 1st 20 elements

Question 1

The element silcon is a semi-metal or metalloid. It is used in the manufacture of silicon chips.

The chemical symbol for silicon is

Your answerChoice

Se

S

Sm

Selected

Si

Question 2

Phosphorus is found on the sides match boxes.

What is the chemical symbol of phosphorus?

Your answerChoice

Pt

K

Pb

Selected

P

Question 3

Potassium is an extremely reactive metal. It is soft, easy to cut and reacts violently with water.

The chemical symbol of potassium is?

Your answerChoice

P

Pb

Selected

K

Po

Question 4

Hydrogen is the lightest of all the chemical elements. It exists as a gas at room temperature and pressure and is highly flammable. The ill-fated Hindenburg airship was filled with hydrogen gas.

The chemical symbol for hydrogen is

Your answerChoice

Hf

He

Hg

Selected

H

Question 5

Helium is a colorless unreactive gas belonging to the noble gas family. It is the second lightest element of the Periodic table and is commonly used in part balloons.

The chemical symbol for Helium is?

Your answerChoice

H

Hg

Hf

Selected

He

Question 6

Sulfur is yellow and is used to make sulfuric acid.

The chemical symbol of sulfur is?

Your answerChoice

Se

Si

Selected

S

Na

Question 7

Magnesium burns brightly as used used in flares.

The chemical symbol for magnesium is

Your answerChoice

Md

Selected

Mg

Mo

Mn

Question 8

The element carbon exists in many common forms or allotropes such as graphite and diamond.

The chemical symbol for the element carbon is?

Your answerChoice

Ca

Selected

C

Cs

Ce

Question 9

Argon is a noble gas and is chemically unreactive. Argon is used incandescent light globes.

The chemical symbol for argon is?

Your answerChoice
Selected

Ar

As

Am

Ag

Question 10

Lithium is an alkali metal and is found in group I of the Periodic table. It is used in lithium batteries.

The chemical symbol of lithium is?

Your answerChoice

La

Lr

K

Selected

Li

Question 11

Beryllium is found in gemstones.

The chemical symbol for the element beryllium is

Your answerChoice
Selected

Be

Bi

Na

B

Question 12

The element boron is found as a compound in borax and boric acid.  Heat resistant glass such as Pyrex contains borosilicate glass.

The chemical symbol for the element Boron is?

Your answerChoice

Bi

Be

Selected

B

Ba

Question 13

Nitrogen is a colorless gas that makes up about 79% of the Earth's atmosphere. Nitrogen is essential for plant growth. Rhyzobium bacteria convert atmospheric nitrogen to nitrates in legume crops.

 

The chemical symbol for nitrogen is?

Your answerChoice
Selected

N

Ni

Ne

Na

Question 14

Oxygen is a colorless gas that makes up about 21% of the Earth's atmosphere. Oxygen gas will reignite a glowing splint.

The chemical symbol for oxygen is?

Your answerChoice

Ne

Ge

Selected

O

Os

Question 15

Fluorine is highly reactive gas that belongs to the halogen group.

The chemical symbol for fluorine is

Your answerChoice

Fr

Ne

Fm

Selected

F

Question 16

Neon is a unreactive gas that is used in neon signs.

The chemical symbol for neon is

Your answerChoice
Selected

Ne

N

Na

Ni

Question 17

Aluminum (US spelling) or aluminium (UK spelling) is a light metal which is resistant to corrosion.

It's chemical formula is

Your answerChoice
Selected

Al

Ag

Ac

As

Question 18

Chlorine is a light yellow gas. Chlorine compounds are used in household bleaches and to kill microbes in drinking water.

The chemical symbol of chlorine is?

Your answerChoice

C

Selected

Cl

Ce

Co

Question 19

Calcium is a reactive metal. It is part of the compound, calcium carbonate which is found in bones, teeth and shells.

The chemical symbol of calcium is

Your answerChoice

Cu

C

Selected

Ca

Cm

Question 20

Sodium metal is highly reactive and does not occur naturally.

The chemical symbol for the element sodium is

Your answerChoice

N

S

Selected

Na

Si