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WorksheetsGroup 17 Elements
Total questions: 10
Worksheet time: 14mins
Reactivity of halogen decreases going down the group because
The 8th electron difficult to attract by nucleus
Atomic size decreases down the group
Electrons are closer to the nucleus
Screening effect decreases
Which of the following is a solid at room temperature?
Fluorine
Chlorine
Bromine
Iodine
Which of the following properties decreases going down the group?
Boiling point
Reactivity
Melting point
Atomic radius
How is the appearance of bromine?
purple solid
brown liquid
green gas
yellow gas
Element X dissolves in water to produce a solution that turns the blue litmus paper red and then decolourised. What is element X?
Sodium
Bromine
Sulphur
Neon
Two chemical properties of element W are shown above.
Based on the information given which of the following is another property of element W?
W reacts with water to liberate hydrogen gas
W is very electropositive
W reacts with sodium hydroxide solution to form salts with the formulae NaW and NaOW
W is a good electrical conductor
Element G, L and J are located in Group 17 of the Periodic Table. Element J is more electronegative than element G. The reaction of red-hot iron wool with gas L is more vigorous than the reaction of red-hot iron wool with gas J. The reactivity of these three elements in ascending order is ?
G, J, L
L, J, G
L, G, J
J, G, L
Table shows the electron arrangement of atoms X and atom Y. Which of the following statements is true about element X and Y?
Element Y is more electronegative than element X
Both the elements, X and Y, are good electrical conductors
An atom of X can accept an electron more readily than an atom of Y
An aqueous solution of element X is acidic but an aqueous solution of element Y is alkaline
Element R forms an ion, R- with an electron arrangement of 2.8.8. The chemical properties of element R are similar to another element with a proton number of?
9
12
16
19
Based on what you have learnt, predict the properties of Astatine. Given that Astatine is an element in Group 17 of the Periodic Table.
Dark brown colour gas with a rapid reaction with H2O to give 2 acids
Black colour solid with a no reaction with H2O
Black colour solid with a very slow reaction with H2O to give 2 acids
Dark brown colour solid with a no reaction with H2O
