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WorksheetsChemistry Form 4 Topic 4.1 & 4.2
Total questions: 12
Worksheet time: 6mins
This scientist classified elements according to certain groups such as gases, non-metals, metals and metal oxides.
Johann W. Dobereiner
Antoine Lavoisier
John Newlands
Lothar Meyer
Johann W. Dobereiner propose the Law of Octaves
True
False
This scientist plotted the graph of atomic volume against atomic mass of elements. He found that the elements at equivalent positions on the curve of the graph had similar chemical properties.
John Newlands
Johann W. Dobereiner
Dmitri Mendeleev
Lothar Meyer
Both of these scientists left several empty spaces in their periodic table to be filled by elements, yet to be discovered.
Dmitri Mendeleev
Henry Moseley
John Newlands
Johann W. Dobereiner
Elements in the Periodic Table of Elements are arranged in
descending order of proton numbers
descending order of atomic sizes
ascending order of proton numbers
ascending order of nucleon numbers
Several new elements which were discovered were added into Period 7 of the Periodic Table of Elements. Which of these are the new elements?
Moscovium
Potassium
Nihonium
Rubidium
Two main components of the Periodic Table are
Column
Period
Group
Row
The number of ___________________ will determine the
position of the group of an element.
total electrons
protons
valence electrons
There are _________ groups and __________ periods in the Periodic Table of Elements
18, 7
7, 18
The electron arrangement of Aluminium is 2.8.3. In which group does Aluminium belongs in Periodic Table of Elements?
Group 3
Group 13
This element has 6 valence electrons and its proton number is 8. In which period does the element located in Periodic Table of Elements?
Period 2
Period 6
Period 8
Proton number of Silicon is 14. In which group does Silicon belongs to in Periodic Table of Elements?
Group 4
Group 3
Group 14
