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प्रश्न
Give reason:
Alkali and alkaline earth metal compounds usually form electrovalent compounds.
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उत्तर
Alkali metals and alkaline earth metals have 1 and 2 valence electrons, respectively, in their outermost shell.
They can lose electrons to atoms of non-metals to form an electrovalent compound.
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संबंधित प्रश्न
How do atomic structures (electron arrangements) change in a period with an increase in atomic numbers moving left to right?
Name the alkali metals, How many electron(s) they have in their outermost orbit.
Name the method by which alkali metals can be extracted.
How do alkaline earth metals occur in nature?
Name the gas used in:
Filling balloons
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 –
alkaline earth 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 |
