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प्रश्न
What are the following group known as?
Group 18
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उत्तर
Group 18 is known as Noble gases or Inert gases or Zero group elements.
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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 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.
Take any one alkali metal and write its reaction with (i)oxygen (ii)water (iii)acid.
Name the first three alkaline earth metals.
Write the electronic configuration of the first two alkaline earth metals.
How many electrons do inert gases have in their valence shells?
Name the gas used in:
Filling balloons
Give reason:
Alkali and alkaline earth metal compounds usually form electrovalent compounds.
Write a short note on the following type of element –
halogens
State the main helpful features of the long form of the periodic table.
