Question

Prepare a list of all the metallic, non-metallic and polyatomic ions. write their symbols and valency

Answer 1

Answer: List of metallic ions:

(1). H⁺ is a hydrogen ion.

Its valency is +1. It is cation.

(2). Na⁺ is a Sodium ion.

Its valency is +1. It is cation.

(3). K⁺ is a potassium ion.

Its valency is +1. It is cation.

(4). Mg²⁺ is a magnesium ion.

Its valency is +2. It is cation.

(5). Ca⁺² is a calcium ion.

Its valency is +2. It is cation.

List of non-metallic ions:

(1). H- is a hydride ion.

Its valency is -1. It is anion.

(2). N(-3) is a nitride ion.

Its valency is -3. It is anion.

(3). P(-3) is a phosphide ion.

Its valency is -3. It is anion.

(4). O(-2) is an oxide ion.

Its valency is -2. It is anion.

List of polyatomic ions:

(1). NH4+ is an ammonium.

Its valency is +1. It is cation.

(2). CO²⁻ ₃ is carbonate ion.

Its valency is -2. It is anion.

Answer 2

AnsweR :-

• Metallic element

1.

$\sf\ Sodium\:= Na^{+}$ (Cation)

$\sf\ Potassium\: = K^{+}$(Cation)

$\sf\ Silver\: = Ag^{+}$ (Cation)

$\sf\ Copper\: = Cu^{+}$ (Cation)

2.

$\sf\ Magnesium\: = Mg^{2+}$ (Cation)

$\sf\ Calcium\:= Ca^{2+}$ (Cation)

$\sf\ Zinc\:= Zn^{2+}$ (Cation)

$\sf\ Iron\:(II)\:= Fe^{2+}$ (Cation)

$\sf\ Copper\:(ll)\:= Cu^{2+}$ (Cation)

3.

$\sf\ Aluminium\: = Al^{3+}$ (Cation)

$\sf\ Iron\:(III)\:= Fe^{3+}$ (Cation)

• Non-metallic element :-

1.

$\sf\ Hydrogen\: = H^{+}$ (Cation)

$\sf\ Hydride\: = H^{-}$ (anion)

$\sf\ chloride\: = Cl^{-}$(anion)

$\sf\ bromide\: = Br^{-}$ (anion)

$\sf\ Iodide\: = I^{-}$ (anion)

2.

$\sf\ Oxide\: = O^{2-}$ (anion)

$\sf\ sulphide\: = S^{2-}$ (anion)

3.

$\sf\ Nitride\: = N^{3-}$ (anion)

• Polyatomic ions :-

1.

$\sf\ Ammonium\: = NH_4^{+}$ (Cation)

$\sf\ Hydroxide\: = OH^{-}$ (anion)

$\sf\ Nitrate\: = NO_3^{-}$ (anion)

$\sf\ Hydrogen Carbonate\: HCO_3^{2-}$ (anion)

2.

$\sf\ Carbonate\: = CO^{2-}_3$ (anion)

$\sf\ Sulphite\: = SO^{2-}$ (anion)

$\sf\ Sulphate\: SO^{2-}_4$ (anion)

3.

$\sf\ Phosphate\: = PO^{3-}_4$ (anion)

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