(solved)Question 3.26 of NCERT Class XI Chemistry Chapter 3

What are the major differences between metals and non-metals?

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Parveen,

Question 3.26
NCERT Class XI Chemistry

What are the major differences between metals and non-metals?

Solution in Detail
(video solution below this)

Abundance

There are 95 (78%) metals in the periodic table.

There are 17 non-metals in the periodic table.

State

Metals [except Hg, Cs, Ga] have high melting and boiling points.

Non-metals [except Carbon and Boron] have low melting and boiling points.

Conductivity

Metals are good conductors of heat and electricity. Non-Metals are bad conductors of heat and electricity.

Malleability

Metals are malleable and ductile, but non-metals are brittle.

Location in Periodic Table

Metallic character is the strongest in elements on the lower left corner of the periodic table.

non-metallic character is the strongest in elements on the top right corner of the periodic table.

Electronegativity

Metals are less electronegative. They easily lose valence electrons, i.e., get oxidized.

non-metals are highly electronegative. They have a strong tendency to gain electrons.

Oxides

Metallic oxides are basic and ionic.

non-metallic oxides are acidic and covalent.

Solutions

Metals form cations in aqueous solutions.

non-metals form anions, and oxyanions in aqueous solutions.

Video Explanation

Please watch this youtube video for a quick explanation of the solution:

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