X Y
Normal electronic configuration 2, 8,7 2,8, 2
Nature of oxide Dissolves in water and turns blue litmus red Very low solubility in water Dissolves in hydrochloric acid
The tendency for Oxidising and
reducing reaction
Tends to oxidize elements and compounds Tends to act as a reducing agent.
Electrical and thermal conductivity Very poor electrical conductor. Poor thermal conductivity. Good electrical conductor. Good thermal conductor
Tendency to form alloys and amalgams No tendency to form alloys form alloys Form alloys
Using the above information, complete the following:
Metal atoms tend to have a maximum of $___$ electrons in the outermost energy level.

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Solution

Metals have the electronic configuration $2, 8, 2$ .
So the maximum number of electrons present in the outermost shell of metals is two.
So metal atom tends to have a maximum of two electrons in the outermost energy level.

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Similar questions

Present a comparative account of the alkali and alkaline earth metals with respect to the following charactieristics.

(i) Tendency to form ionic / covalent compounds

(ii) Nature fo oxides and their solubility in water

(iii) Formation of oxosalts

(iv) Solubility of oxosalts.

(v) Thermal stability of oxosalts.

	X	Y
Normal electronic configuration	2, 8,7	2,8, 2
Nature of oxide	Dissolves in water and turns blue litmus red	Very low solubility in water Dissolves in hydrochloric acid
The tendency for Oxidising and reducing reaction	Tends to oxidize elements and compounds	Tends to act as a reducing agent.
Electrical and thermal conductivity	Very poor electrical conductor. Poor thermal conductivity.	Good electrical conductor. Good thermal conductor
Tendency to form alloys and amalgams	No tendency to form alloys form alloys	Form alloys

Using the above information, complete the following:

(ii) Non-metallic elements tend to form $___$ oxides while metals tend to form $___$ oxides.

	X	Y
Normal electronic configuration	2, 8,7	2,8, 2
Nature of oxide	Dissolves in water and turns blue litmus red	Very low solubility in water Dissolves in hydrochloric acid
The tendency for Oxidising and reducing reaction	Tends to oxidize elements and compounds	Tends to act as a reducing agent.
Electrical and thermal conductivity	Very poor electrical conductor. Poor thermal conductivity.	Good electrical conductor. Good thermal conductor
Tendency to form alloys and amalgams	No tendency to form alloys form alloys	Form alloys

Using the above information, complete the following:

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

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

Using the above information, 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

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