Advertisements
Advertisements
प्रश्न
Explain the following briefly:
Helium does not form He2 molecule
Advertisements
उत्तर
Helium does not form He2 molecule as it has its outermost shell complete i.e. two electrons in its valence shell. Due to this complete valence shell helium atom is very stable hence does not participate in chemical bonding to form He2 molecule.
APPEARS IN
संबंधित प्रश्न
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a non-metal.
A Compound 'X' consists of only molecules. Hence 'X' will have
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
State the following is a reduction reaction or oxidation reaction.
\[\ce{Fe^2+ - e- -> Fe^3+}\]
How are X-rays produced?
What do you think would be the observation of `alpha` particle scattering experiment if carried out on (i) heavy nucleus like platinum (ii) light nuclei like litheum.
Define the term:
orbit
Identify the following reaction as either oxidation or reduction:
Fe3+ + e- → Fe2+
Number of valence electrons in carbon is ______.
How many atoms of each kind are present in the following molecule:
water
