WorksheetsElements
Total questions: 19
Worksheet time: 10mins
About how many elements are there on the periodic table that occur in nature?
This is a well-known periodic table fact in chemistry circles.
(All of the other elements are strictly human-made. Some sources state more elements occur naturally because heavy elements may transition between elements as they undergo radioactive decay.)
94
102
81
121
Water (Vatten)
H2O2
H2O
HO2
Oxygen (Syre)
S
O
H
Approxamately how much oxygen is in the air at sea level?
52%
35%
21%
Salt (Salt)
Na2Cl
Cl2Na
NaCl
Carbon monoxide (Kolmonoxid)
CO
CO2
C2O
Arsenic (Arsenik)
Ac
Ar
As
Iron (Järn)
Ie
Fe
Be
What is Pb
Cobalt (Kobolt)
Lead (Bly)
Tin (Tenn)
What is Sn
Tin (Tenn)
Silver (Silver)
Zinc (Zink)
Neon
Nn
Not an element (Inte ett grundämne)
Ne
Methane (Metan)
Me
Not an element (Inte ett grundämne)
Ma
Steel (Stål)
Not an element (Inte ett grundämne)
St
Sl
Bronze (Brons)
Not an element (Inte ett grundämne)
Br
Bz
What is Ag
Argon (Argon)
Not an element (Inte ett grundämne)
Silver (Silver)
Copper (Koppar)
Co
Cu
Cp
Brass (Mässing)
Not an element (Inte ett grundämne)
Br
Bs
Krypton (Krypton)
Kr
Kt
Not an element (Inte ett grundämne)
What is Au
Aluminium (Aluminium)
Gold (Guld)
Not an element (Inte ett grundämne)
