Advertisements
Advertisements
प्रश्न
State the valency of the following metallic element and write symbol with the valency
Magnesium
Advertisements
उत्तर
Metals have positive valency 1, 2 or 3,
| Element | Symbol | Valency |
| Magnesium | \[\ce{Mg}\] | \[\ce{Mg^2+}\] |
APPEARS IN
संबंधित प्रश्न
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 |
Match the symbols of metallic elements – with their correct combining power or capacity.
(a) K
(b) Zn
(c) Al
(d) Na
(e) Ca
Combining power or capacity – A : 3 ; B : 2 ; C : 1. (positive valencies)
State which element exists in the highest percentage in earth’s crust.
Give the symbol of the following element:
Chlorine [chloride]
State the type of element for the following:
Mercury
State the type of element for the following:
Zinc
Write the radical of the following valency:
Sulphite
Write the radical of the following valency:
Iodine
Give the formula of the following gas:
Nitrogen
Name the following:
An acid whose formula is ‘H2CO3’.
