Advertisements
Advertisements
प्रश्न
Write a short note on the following type of element –
alkaline earth metals
उत्तर
Elements of group II-A Be, Mg, Ca, Sr, Ba, Ra is called alkali earth metals as oxides of all these metals are alkaline in nature.
APPEARS IN
संबंधित प्रश्न
Name and state the following with reference to the elements of the first three periods of the periodic table.
Noble gas with duplet arrangement of electrons.
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?
How many electrons do inert gases have in their valence shells?
Name the gas used in:
Light bulbs
Give reason:
Alkali metals are kept in an inert solvent.
Give reason:
Inert gases do not form compounds.
Give a reason for the following:
Noble gases do not form compounds readily.
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 |
