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प्रश्न
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Tin
write symbol with the variable valency
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उत्तर
Tin has variable valency 2 and 4
| \[\ce{Sn^{2+}}\] | \[\ce{Sn^{4+}}\] |
| Stanous | Stanic |
OR
| \[\ce{Sn[II]}\] | \[\ce{Sn[IV]}\] |
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संबंधित प्रश्न
Give the names and symbols of five familiar substances which you think are elements.
How are the elements with variable valency named? Explain with an example.
Give two examples of the following:
Liquid + Liquid mixture:
An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Hydrogen by ‘H’
Match the metallic elements – with their correct symbols Metallic elements
| Metallic elements | Symbol |
| (a) Potassium | (1) Ca |
| (b) Sodium | (2) Zn |
| (c) Calcium | (3) Pb |
| (d) Magnesium | (4) Hg |
| (e) Zinc | (5) Cu |
| (f) Aluminum | (6) Au |
| (g) Iron | (7) K |
| (h) Lead | (8) Fe |
| (i) Copper | (9) Al |
| (j) Mercury | (10) Na |
| (k) Silver | (11) Mg |
| (l) Platinum | (12) Pt |
| (m) Gold | (13) Ag |
Give the symbol of the following element:
Neon
Give the symbol of the following element:
Iodine
Write the radical of the following valency:
Oxygen
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
