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प्रश्न
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas having electronic configuration: 2, 8, 8.
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उत्तर
Argon
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संबंधित प्रश्न
Consider the following elements: Be, Li, Na, Ca, K. Name the elements of (a) same group (b) same period.
What are the following group known as?
Group 18
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
Filling balloons
Name the gas used in:
Light bulbs
Name the gas used in:
Bright colour advertising light works
Give reason:
Inert gases do not form compounds.
Write a short note on the following type of element –
alkali metals
Write a short note on the following type of element –
noble gases
Match the elements of List – I with their type from List – II.
| List – I | List – II |
| 1. Highly reactive, univalent metals | A: Halogens |
| 2. Highly reactive, univalent non-metals | B: Transition elements |
| 3. Unreactive, inert elements | C: Alkali metals |
| 4. Elements of group 3 to 12 [IB to VII B and VIII] | D: Lanthanide series |
| 5. Radioactive elements | E: Noble gases |
| F: Actinide series |
