Advertisements
Advertisements
प्रश्न
State the type of element for the following:
Sodium
विकल्प
Metal
Non-metal
Metalloid
Noble gas
Advertisements
उत्तर
Metal
APPEARS IN
संबंधित प्रश्न
Which particular atom of the above element is used for this purpose ?
Give the names and symbols of five familiar substances which you think are elements.
What is meant by atomicity? Name the diatomic element.
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Match the non-metallic elements – with their correct symbols. Non-metallic elements are:
| Non-Metallic elements | Symbol |
| (a) Carbon | (1) O |
| (b) Chlorine | (2) I |
| (c) Oxygen | (3) Si |
| (d) Phosphorus | (4) C |
| (e) Hydrogen | (5) Cl |
| (f) Nitrogen | (6) P |
| (g) Iodine | (7) F |
| (h) Bromine | (8) H |
| (i) Fluorine | (9) S |
| (j) Silicon | (10) Br |
| (k) Sulphur | (11) N |
In the chemical word equation – Zinc + Sulphuric acid → Zinc sulphate + Hydrogen
The molecular equation is :
Zn + H2SO4 → ZnSO4 + H2[g].
State what [g] represents.
Give the symbol of the following element:
Calcium
Write the chemical formula of the following:
magnesium oxide
State the valency of the following metallic element and write symbol with the valency
Sodium
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Chloride
