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Question
Write the chemical formula of the following:
calcium sulphide
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Solution
CaS
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RELATED QUESTIONS
The scientist who proposed the first letter (or first letter and another letter) of the Latin or English name of
an element as its symbol, was :
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 |
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K1+ Cl1-
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State the type of element for the following:
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Write the radical of the following valency:
Hydroxide
State the valency of the following metallic element and write symbol with the valency
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Write the symbols for the following elements.
- Oxygen
- Gold
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The chemical symbol for sodium is
