WorksheetsGROUP 18
Total questions: 11
Worksheet time: 11mins
What are the elements in group 18 (the far right) of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
The symbol for helium is
H
He
Hl
Hm
The symbol for argon is
Ar
Ag
An
A
Why is Helium used in divers' tank but not hydrogen gas?
Helium is lighter than hydrogen
Helium is inert to any chemical reactions
Helium is cheaper
Helium is easy to get from market
Argon (proton number =18) is inert to any chemical reaction because
It is light
it is located in Group 18
it has achieved stable duplet electron arrangement
it has achieved stable octet electron arrangement
The following shows some information about element Q.
1) Relative atomic mass is 9
2) has 5 neutrons
Which statements is correct about element Q?
Element Q is placed in Group 15 of the Periodic Table
Atom Q has 9 protons
Element Q has 2 valence electrons
Atom Q has three shells occupied with electrons
Diagram above shows the electron arrangements of atom D and atom E. Which of the following statements is true about elements D and E?
The boiling point of Element E is lower than Element D
Both the elements, D and E, can conduct electricity
Both the elements, D and E, are very soluble in water
Both the elements, D and E, cannot combine with other elements to form compounds
Group 18 also known as __________ or __________.
noble gases
alkali metals
inert gases
It is used in weather balloon and oxygen tank for divers.
This refers to
Argon
Neon
Helium
Kryoton
It is used in advertising board lights.
Helium
Neon
Argon
Krypton
If proton number of neon is 10. Which of the following will be the electron arrangement for neon
