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WorksheetsPERIODIC TABLE: GROUP 18 AND 1
Total questions: 16
Worksheet time: 10mins
Give three elements of Group 18.
Helium
Neon
Argon
Lithium
Sodium
All inert gases exist as (a) gases at room conditions.
The helium atom has 2 valence electrons. These arrangement is called a _____________ electron arrangement.
octet
duplet
Atomic elements of Group 18, other than helium, have ___ valence electrons.
1
2
8
7
(a) is used to fill weather balloons.
Group 18 elements are also known as noble gases or (a) gases.
Elements of group 18 have the following physical properties:
Have low melting and boiling point
Have high melting and boiling point
Conduct electricity
Do not conduct electricity
Have low density
Group 1 in the Periodic Table of Elements is made up of (a) metals.
Elements of group 1 have the following physical properties:
They cannot conduct electricity
They are soft and shiny solids
Have low density
They cannot conduct heat
All alkali metal atoms have (a) valence electron.
State one safety method to store alkali metals.
Stored in paraffin oil.
Stored in water.
The reactivity of alkali metal (a) when going down the group.
Why do alkali metals have the same chemical properties?
All alkali metals will lose one valence electron in the valence shell to form _______ ions.
positive
negative
An alkaline metal burns in oxygen to produce white fumes that became a ____ solid.
Black
Gray
White
Pink
Alkali metal reacts with chlorine gas to produce white metal (a) salts.
