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प्रश्न
Name six common non-metals and write their symbols.
उत्तर
| S.No | Non – metals | Symbols |
| 1. | Sulphur | S |
| 2. | Carbon | c |
| 3. | Oxygen | 0 |
| 4. | Hydrogen | H |
| 5. | Helium | He |
| 6. | Nitrogen | N |
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संबंधित प्रश्न
Give the name and formulae of two basic oxides.
State three reasons (of which at least one must be chemical) for believing that sodium is a metal.
Tick (√) the most appropriate answer.
Copper metal is used in :
Tick (√) the most appropriate answer.
Sodium amalgam is prepared by dissolving sodium in :
Why are alloys made?
Name the three classes in which elements are classified. Which was the first metal used by man?
Name two metalloids.
Name a non-metal which can form a positive ion.
From the list of characteristics given below, select the five which are relevant to non-metals and their compounds:
- Ductile
- Conduct electricity
- Brittle
- Acidic Oxides
- Basic Oxides
- Discharged at anode
- Discharged at cathode
- Ionic chlorides
- Covalent chlorides
- Reaction with dilute sulphuric acid yields hydrogen
- 1, 2 or 3 valence electrons
- 5, 6, 7 valence electrons
(Write the five letters corresponding to the correct characteristics).
Select the appropriate option for the following statement:
The element placed in the extreme left of the Modern Periodic Table.
