WorksheetsElements
Total questions: 20
Worksheet time: 20mins
What is the study of matter's composition, structure, and properties?
Physics
Chemistry
Biology
Geography
____________ is anything that takes space.
Matter
Atom
Nucleus
Protons
What is the smallest particle of an element?
Proton
Nucleus
Atom
Matter
There are ___________ subatomic particles.
five
seven
three
one
Which subatomic particle has positive electric charge?
Neutron
Proton
Electron
Nucleus
Which subatomic particle has negative electric charge?
Electron
Proton
Neutron
Nucleus
A neutron is a subatomic particle that has _________ electric charge.
Positive
Negative
Both
Neutral
Which subatomic particle can be found orbiting the nucleus of an atom?
Proton
Neutron
Electron
Proton and Neutron
What is atomic number of an atom?
Number of it's neutron.
Number of it's protons.
Number of it's neutrons and protons.
Number of it's electrons.
Which one of the following chemical element is gas at room temperature?
Iron
Helium
Gold
Aluminium
What is atomic mass of an atom?
Number of it's neutrons.
Number of it's neutrons and protons.
Number of it's electrons and neutrons.
Number of it's neutrons and electrons.
Lithium has two natural occurring isotopes, Lithium-6 and Lithium-7. It's atomic number is 3. What is the number of neutrons in Lithium-7?
10
6
4
3
An element has how many types of atoms?
only one type
two types
many types
3 - 4 types
Which elements are abundant in the universe?
Elements with very high atomic numbers.
Elements with low atomic numbers.
Elements with high number of protons.
Elements with low number of neutrons.
Which one of the following is the most common element in the universe?
Nitrogen
Silicon
Hydrogen
Carbon
Our sun and stars are mostly composed of
Oxygen
Nitrogen
Potassium
Hydrogen
Sand is combination of which two elements?
Oxygen and silicon
Nitrogen and hydrogen
Carbon and Calcium
Hydrogen and oxygen
Diamond is the purest form of which element?
Oxygen
Nitrogen
Carbon
Hydrogen
Ammonia is a fertilizer which is used for the growth of plants. Which two elements make ammonia?
Hydrogen and Oxygen
Hydrogen and Nitrogen
Hydrogen and Chlorine
Hydrogen and Calcium
Coal and graphite are made from which element?
Oxygen
Nitrogen
Calcium
Carbon
