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Question
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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Solution
Argon
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RELATED QUESTIONS
What are the following group known as?
Group 17
How do atomic structures (electron arrangements) change in a period with an increase in atomic numbers moving left to right?
Name the first three alkaline earth metals.
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
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Write a short note on the following type of element –
alkaline earth metals
Name or state following with reference to the element of the first three periods of the periodic table.
An alkaline earth metal in period 3.
Select the correct answer from the options given below.
The most reactive halogen from group 17.
Give a reason for the following:
Group 1 [I – A] elements are called alkali metals.
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 |
