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WorksheetsELEMENTS AND COMPOUNDS
Total questions: 10
Worksheet time: 5mins
Which of the following is a compound?
wood
iron
water
air
A substance containing two or more elements chemically bonded together is considered a(n):
mixture
atom
alloy
cpmpound
How many different atoms are there in a compound?
one
always two
two or more
none of these
Which of these is the smallest particle?
an atom
a molecule
an element
a speck of dust
Which of these is the correct symbol for magnesium
MG
mg
Mg
mag
A pure substance which atoms are of the same type is called
mixture
compound
element
all of the above
Examples of noble gases are:
Hydrogen and Helium
Nobelium and Einsteinium
Helium and Neon
Magnesium and Chlorine
The lightest gas is:
helium
oxygen
neon
carbon dioxide
The table that lists down the more than 100 elements is known as the:
Mendeleev’s Table
Periodic Table
Chemistry Element Table
Octet Table
The chemical symbols of chlorine, potassium, copper, sodium, nitrogen and iron in order are:
C l, P, Co, So, Ni, I
C, K, Co, Na, N, Fe
A. Cl, K, Co, So, N, Fe
Cl, K, Cu, Na, N, F
