X Y
Normal Electronic
Configuration
Nature of oxide 2, 8, 7
Dissolves in water and
turns blue litmus red
2, 8, 2
Very low solubility in
water. Dissolves in
hydrochloric acid
Tendency for oxidising
and reducing reactions
Electrical and Thermal
conductivity Tends to oxidise elements
and compounds
Very poor electrical
conductor
Poor thermal conductivity Tends to act as a
reducing agent
Good Electrical conductor
Good Thermal conductor
Tendency to form
alloys and amalgums No tendency to form
alloys Forms alloys
Using the information above, complete the following
Metal atoms tend to have a maximum of ________ electrons in the outermost energy level.

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Solution

Element X is a non metal as it has 1 electron less in this outermost shell and it will tend to accept 1 electron to complete its octet. whereas element Y is a metal which tends to donate 2 electrons present in its outermost shell. Hence, maximum of 2 electrons metals have in their outermost shell.

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Similar questions

	X	Y
Normal Electronic Configuration Nature of oxide	2, 8, 7 Dissolves in water and turns blue litmus red	2, 8, 2 Very low solubility in water. Dissolves in hydrochloric acid
Tendency for oxidising and reducing reactions Electrical and Thermal conductivity	Tends to oxidise elements and compounds Very poor electrical conductor Poor thermal conductivity	Tends to act as a reducing agent Good Electrical conductor Good Thermal conductor
Tendency to form alloys and amalgums	No tendency to form alloys	Forms alloys

Using the information above, complete the following

Non-metallic elements tend to form _________ oxides while metals tend to form _________ oxides.

	X	Y
Normal Electronic Configuration Nature of oxide	2, 8, 7 Dissolves in water and turns blue litmus red	2, 8, 2 Very low solubility in water. Dissolves in hydrochloric acid
Tendency for oxidising and reducing reactions Electrical and Thermal conductivity	Tends to oxidise elements and compounds Very poor electrical conductor Poor thermal conductivity	Tends to act as a reducing agent Good Electrical conductor Good Thermal conductor
Tendency to form alloys and amalgums	No tendency to form alloys	Forms alloys

Using the information above, complete the following

Metals tend to _______ electrons and act as __________ agents in their reactions with elements and compounds.

	X	Y
Normal Electronic Configuration Nature of oxide	2, 8, 7 Dissolves in water and turns blue litmus red	2, 8, 2 Very low solubility in water. Dissolves in hydrochloric acid
Tendency for oxidising and reducing reactions Electrical and Thermal conductivity	Tends to oxidise elements and compounds Very poor electrical conductor Poor thermal conductivity	Tends to act as a reducing agent Good Electrical conductor Good Thermal conductor
Tendency to form alloys and amalgums	No tendency to form alloys	Forms alloys

Using the information above, complete the following

Non-metallic elements tend to be __________ conductors of heat and electricity.

Q. An element reacts with oxygen to form an oxide which dissolves in dilute hydrochloric acid. The oxide formed turns a red litmus blue.The element is a

An element reacts with oxygen to form oxide which dissolve in dilute hydrochloric acid.the oxide formed turns a solution of red litmus blue. Is the element a metal or a nonmetal? Explain with an example.

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