Advertisements
Advertisements
प्रश्न
Give the symbol and the number of atoms of the following elements present in sodium chloride.
उत्तर
Sodium Chloride
| Elements | Symbols |
| (Sodium) | Na |
| [Chlorine(Chloride)] | Cl |
No. of atoms of this element present
1 atom of - Na, 1 atom of - Cl
संबंधित प्रश्न
Select elements and compounds from the following list: Iron, plaster of paris, chalk, common salt, copper, aluminium, calcium oxide, cane sugar, carbon, silica, sodium sulphate, uranium, potassium carbonate, silver, carbon dioxide.
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 |
State the type of element for the following:
Copper
Write the chemical formula of the following:
aluminium chloride
Give the formula of the following gas:
Hydrogen chloride
Give the formula of the following gas:
Nitrous oxide
State the valency of the following metallic element and write symbol with the valency
Calcium
Which of the following would weigh the highest?
Mass of one atom of oxygen is
What is the significance of the symbol of an element?
