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प्रश्न
Select the correct answer from the options given below.
The most reactive halogen from group 17.
पर्याय
chlorine
fluorine
bromine
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उत्तर
fluorine
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संबंधित प्रश्न
What are the following group known as?
Group 1
Write the electronic configuration of the first two alkaline earth metals.
Name the gas used in:
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Write a short note on the following type of element –
alkaline earth metals
‘The periodic table contains elements methodically grouped together’.
State the main helpful features of the long form of the periodic table.
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.
State the following:
The group from the groups 1 [IA], 2 [IIA], 16 [VIA] and 7 [VIIA] whose elements are most electronegative.
State the following:
The group whose elements are unreactive or inert.
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 |
