Advertisements
Advertisements
प्रश्न
State the valency of the following metallic element and write symbol with the valency
Calcium
उत्तर
Metals have positive valency 1, 2 or 3,
| Element | Symbol | Valency |
| Calcium | \[\ce{Ca}\] | \[\ce{Ca^2+}\] |
APPEARS IN
संबंधित प्रश्न
Give the names and symbols of five familiar substances which you think are elements.
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
State which element exists in the highest percentage in earth’s crust.
Give the symbol of the following element:
Lead
State the type of element for the following:
Platinum
State the type of element for the following:
Aluminium
Give the formula of the following acid:
Sulphuric
Give the formula of the following gas:
Nitric oxide
Define the term ‘valency’.
What does the symbol '⇌' present in a chemical equation, mean?
