WorksheetsChemistry Quiz
Total questions: 29
Worksheet time: 43mins
The word 'atom' comes from the Greek word
'atoma', meaning that which cannot be seen.
'atomis', meaning imaginary particle.
'atomos', meaning that which cannot be divided.
'atome', meaning small sphere.
An element is a substance that
is made of atoms.
cannot be broken down into other substances.
contains water.
is a metal used in kettles.
Pick the odd one out.
Sulfur
Oxygen
Copper
Carbon
The lightest element is
helium
hydrogen
oxygen
carbon
The lightest element is
helium.
Oxygen
Sodium.
carbon.
Identify the list that contains only non-metals.
oxygen; carbon; lithium
helium; hydrogen; fluorine
mercury; copper; zinc
helium; hydrogen; silicon
The component of an atom that is positively charged is
A proton
An electron
A neutron
a quartz
Most of an atom is taken up by
Nucleus
Electron cloud
empty space
moving particles
A compound
Is made of different elements that are not strongly linked together
Is made of different elements whose atoms are bonded strongly together
Has similar characteristics to the elements it is made of
Is a type of mixture containing a few atoms
Table salt is a common example of
an element
a mixture
A compound
A skibidi
Table salt is a common example of
an element.
a mixture.
a compound.
an atom.
Which of the following is an example of a metalloid?
Germanium
Iron
Steel
Carbon
A group of atoms bonded to each other is called
a molecule.
a compound.
a mixture.
an element.
The element which constitutes diamond and graphite is
A. oxygen.
B. carbon.
C. sulfur.
D. gold.
Into which two elements can water be broken down?
(a)
Identify two features of metals.
Malleable, Ductile
Coopeta, Mapeta
Poor heat conductor and electricity conductor
Shiny
which of the following is a mixture
Brass
Carbon
Silver nitrate
Neon
Identify the contribution Democritus made to science.
Identify the scientist who proposed the following atomic model
Define the term allotrope and name one example of an element with allotropic forms.
Give a written definition of: (a) an element. (b) a compound. (c) a mixture.
Name two elements that are examples of: metalloids
Copper, iron
Oxygen and chlorine
Silicon and germanium
Fluorine and potassium
Give the symbols for the following elements. (a) hydrogen (b) lithium (c) boron
Give the names for the following elements.
B, Ca, K
Describe three of the major ideas in John Dalton's atomic theory.
A compound has the formula: CuSO₄·5H₂O. (a) Name the elements in this compound.
A compound has the formula: CuSO₄·5H₂O. (a) Name the elements in this compound.
A compound has the formula: CuSO₄·5H₂O.
(b) Name the metals and non-metals present.
In water, how many oxygen atoms are present in this compound?
