Chemistry
Differentiate between the terms - 'Ion' & 'radical' with suitable examples.
Valency
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Answer
| Ion | Radical |
|---|---|
| An ion is any atom or a group of atoms carrying a positive or negative charge due to loss or gain of electrons. | A radical is an atom or a group of atoms of the same or of different elements that behaves as a single unit with a positive or a negative charge. |
| Positively charged ions are called cations. For example, Sodium [Na1+] | Positively charged radicals are called basic radicals. For example, Ammonium [NH41+] |
| Negatively charged ions are called anions. For example, Chloride [Cl1-]. | Negatively charged radicals are called acidic radicals. For example, Bicarbonate [HCO31-] |
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Related Questions
Certain metals exhibit variable valencies which include valencies: 1+, 2+, 3+, & 4+. State the variable valency of the following metals -
(a) Copper
(b) Silver
(c) Mercury
(d) Iron
(e) Tin
(f) Lead
[write each symbol with the variable valency]
State which of the following ions or radicals given below of non-metallic elements exhibit valency: 1-, 2- & 3-
(a) Chloride
(b) Bromide
(c) Iodide
(d) Nitrate
(e) Hydroxide
(f) Bicarbonate
(g) Bisulphite
(h) Bisulphate
(i) Aluminate
(j) Permanganate
(k) Oxide
(l) Sulphide
(m) Sulphite
(n) Sulphate
(o) Carbonate
(p) Dichromate
(q) Zincate
(r) Plumbite
(s) Phosphate
(t) Nitride
[write each ion or radical with the correct valency]
Write the chemical formula of Potassium chloride in a step-by-step manner.
Write the chemical formula of Sodium bromide in a step-by-step manner.