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Question
Name the gas used in:
Light bulbs
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Solution
Argon
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RELATED QUESTIONS
Consider the following elements: Be, Li, Na, Ca, K. Name the elements of (a) same group (b) same period.
What happens to the number of valence electrons in atoms of elements as we go down a group of the periodic table?
Name the first three alkaline earth metals.
Name the gas used in:
Bright colour advertising light works
Give reason:
Alkali metals are kept in an inert solvent.
Write a short note on the following type of element –
alkaline earth metals
Write a short note on the following type of element –
noble gases
Give a reason for the following:
Noble gases do not form compounds readily.
State the following:
The group which contains highly reactive electronegative non-metals including chlorine.
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 |
