Question 26

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

Answer

METALS	NON METALS
Metals can lose electrons easily.	Non-metals cannot lose electrons easily
Metals are solids at room ( Exceptions – Hg, Ga ).	temperature Non – metals may be solids, liquids or gases at room temperature
Metals generally form ionic compounds.	Non–metals generally form covalent compounds.
Metals have low ionization enthalpies.	Non–metals have high ionization enthalpies.
Metals are less electronegative. They are rather electropositive elements.	Non–metals are electronegative.
Metals have a high reducing power.	Non–metals have a low reducing power
Metals have luster. They reflect light from polished or freshly cut surface	Non-metals do not have luster.( Exceptions – Diamond and Iodine )
Metals generally have high density	Non-metals generally have low density
They are good conductors of heat and and electricity.	They are usually bad conductors of heat electricity. (exception – carbon in the form of gas carbon and graphite )
Metals are malleable and ductile. They can be beaten into sheets and drawn into wires.	Non-metals are not malleable and ductile They are brittle when solid.They can be crushed into powder
They have a three dimensional crystal structure with metallic bonds	They have different types of structures with covalent and van-der-Walls’ bonds
Metals usually have high tensile Strength	Non- metals usually have low tensile strength
Metals generally have 1 to 3 electrons in outermost shell of their atoms	Non-metals generally have 4 to 8 in their outermost shell of the atom
They generally form basic oxides.	They generally form acidic oxides
They act as reducing agents	They act as oxidizing agents.

Popular Questions of Class 11 Chemistry

Q:-
The mass of an electron is 9.1 × 10^–31 kg. If its K.E. is 3.0 × 10^–25 J, calculate its wavelength.
Q:-
Calculate the amount of carbon dioxide that could be produced when

(i) 1 mole of carbon is burnt in air.

(ii) 1 mole of carbon is burnt in 16 g of dioxygen.

(iii) 2 moles of carbon are burnt in 16 g of dioxygen.
Q:-
Calculate the wavelength of an electron moving with a velocity of 2.05 × 10⁷ ms^–1.
Q:-
Balance the following redox reactions by ion – electron method :

(a) MnO₄^–(aq) + I^–(aq) → MnO_{2 (s)} + I_2(s) (in basic medium)

(b) MnO₄ ^– (aq) + SO_{2 (g)}→ Mn²⁺ (aq) + HSO₄^– (aq) (in acidic solution)

(c) H₂O_{2 (aq)} + Fe ²⁺(aq) → Fe³⁺ (aq) + H₂O (l) (in acidic solution)

(d) Cr₂O₇ ^2– + SO_2(g) → Cr³⁺ _(aq) + SO₄^2–(aq) (in acidic solution)
Q:-
In a process, 701 J of heat is absorbed by a system and 394 J ofwork is done by the system. What is the change in internal energy for the process?
Q:-
What will be the minimum pressure required to compress 500 dm³ of air at 1 bar to 200 dm³ at 30°C?
Q:-
In a reaction A + B2 → AB2 Identify the limiting reagent, if any, in the following reaction mixtures.

(i) 300 atoms of A + 200 molecules of B

(ii) 2 mol A + 3 mol B

(iii) 100 atoms of A + 100 molecules of B

(iv) 5 mol A + 2.5 mol B

(v) 2.5 mol A + 5 mol B
Q:-
At 0°C, the density of a certain oxide of a gas at 2 bar is same as that of dinitrogen at 5 bar. What is the molecular mass of the oxide?
Q:-
Which one of the following will have largest number of atoms?

(i) 1 g Au (s)

(ii) 1 g Na (s)

(iii) 1 g Li (s)

(iv) 1 g of Cl2(g)
Q:-
Density of a gas is found to be 5.46 g/dm³ at 27 °C at 2 bar pressure. What will be its density at STP?

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

Popular Questions of Class 11 Chemistry

Recently Viewed Questions of Class 11 Chemistry

Write a Comment:

NCERT Solutions

Quick Links

Resources

Support