Advertisements
Advertisements
प्रश्न
What are the following group known as?
Group 18
एका वाक्यात उत्तर
Advertisements
उत्तर
Group 18 is known as Noble gases or Inert gases or Zero group elements.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Consider the following elements: Be, Li, Na, Ca, K. Name the elements of (a) same group (b) same period.
What are the following group known as?
Group 1
Name the method by which alkali metals can be extracted.
How many electrons do inert gases have in their valence shells?
Name the gas used in:
Filling balloons
Give reason:
Alkali metals and halogens do not occur free in nature.
Give reason:
Inert gases do not form compounds.
Write a short note on the following type of element –
alkali metals
‘The periodic table contains elements methodically grouped together’.
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 |
