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WorksheetsFun Chemistry
Total questions: 20
Worksheet time: 10mins
What is Fe?
Fluorine
Iron
Beryllium
Neon
Which of the following atomic symbols is written correctly?
CC
CO
CL
HE
How many different elements are in this chemical formula: C2H2ClK3
6
2
8
4
Which of the following atomic symbols for bromine is written correctly?
Br
bR
BR
br
Which of the following chemical formulas represents a compound?
C3
O2
H2O
H2
What is the most abundant element found in the earth's atmosphere?
Oxygen
Sulphur
Carbon dioxide
nitrogen
What is the symbol for Potassium?
K
P
Kr
Pb
What is C?
Cobalt
Calcium
Copper
Carbon
What is the symbol for Aluminum?
Ar
Al
Ni
Mg
What is the symbol for Boron?
Br
B
Be
Rb
What is Mn?
Manganese
Magnesium
Silicon
Cobalt
What is Se?
Scandium
Sulfur
Selenium
Silicon
What is N?
Neon
Nitrogen
Nickel
Vanadium
What is the symbol for Sulfur?
Sc
Si
Fl
S
What is Co?
Copper
calcium
Cobalt
Chromium
What element has an atomic number of 1?
Hydrogen
Helium
Oxygen
Bromine
To what family of elements do the elements helium, neon, and argon belong to?
Alkali metals
Halogens
Noble gases
Transition metals
What family of elements has only one electron in the outer shell making them very reactive?
Alkali metals
Transition metals
Noble gases
Halogens
What are atoms of the same element that have a different number of neutrons called?
Compounds
Isotopes
Radio actives
Organics
The atomic number of an atom is the number of ______ in the atom's nucleus.
electron
proton
nucleon
valence electron
