State three reasons for the following facts:

1)Sulphur is a non-metal.

2)Magnesium is a metal.

ONE OF THE REASONS MUST BE WITH A CHEMICAL EQUATION

please answer fast ...

Sulphur is non-metal because 
(1) Number of electrons in the valence shell is more than 4 i.e., 6 unlike metals which have valence electrons less than 4.
(2) It has tendency to accept electrons.
(3) It is non-lustrous.
(4) It burns in air to form sulphur dioxide which is an acidic oxide as non-metals react with air to form acidic oxide.

              S + O2 → SO2

​Magnesium is metal because
(1) Number of valence electrons is less than 4 i.e., 2 unlike non-metal which have valence electrons more than 4.
(2) It has tendency to lose electrons as the ionisation energy is low.
(3) It exhibits lusture.
(4) It burns in air to form MgO which is a basic oxide as metals form basic oxide with air.

             2Mg +  O2​  →  2MgO 



 

  • 34

1)Sulphur is a non metal because-

  • It is a electron accepter.
  • Its oxide is acidic in nature.
  • It os brittle.

Non metal react with oxygen to form non - metal oxides

Sulphur burns in air to form sulphur dioxide:

sulphur + oxygen → sulphur dioxide

2)

  • 1

1)Sulphur is a non metal because-

  • It is a electron accepter.
  • Its oxide is acidic in nature.
  • It is brittle.

Non metal react with oxygen to form non - metal oxides

Sulphur burns in air to form sulphur dioxide:

sulphur + oxygen → sulphur dioxide

  • 8

1)Sulphur is a non metal because-

  • It is a electron accepter.
  • Its oxide is acidic in nature.
  • It is brittle.

Non metal react with oxygen to form non - metal oxides

Sulphur burns in air to form sulphur dioxide:

sulphur + oxygen → sulphur dioxide

2)Magnesium is a metal because-

  • It is a electron donator.
  • Its oxide is basic in nature.
  • It is lustorous and has the physical properties of matals.

Metal react with oxygen to formmetal oxides

Magnesum burns in air to form magnesium oxide:

magnesium + oxygen → magnesium oxide

2Mg +O2→2MgO

  • 11

1)Sulphur is a non metal because-

  • It is a electron accepter.
  • Its oxide is acidic in nature.
  • It is brittle.

Non metal react with oxygen to form non - metal oxides

Sulphur burns in air to form sulphur dioxide:

sulphur + oxygen → sulphur dioxide

2)Magnesium is a metal because-

  • It is a electron donator.
  • Its oxide is basic in nature.
  • It is lustorous and has the physical properties of mEtals.

Metal react with oxygen to formmetal oxides

Magnesum burns in air to form magnesium oxide:

magnesium + oxygen → magnesium oxide

2Mg +O2→2MgO

  • 5
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