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प्रश्न
Elements with stable electronic configurations have eight electrons in their valence shell. They are ______.
विकल्प
halogens
metals
noble gases
non metals
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उत्तर
Elements with stable electronic configurations have eight electrons in their valence shell. They are noble gases
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संबंधित प्रश्न
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.
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.
Why do they exist as monoatoms in molecules?
Name the following:
An element having valency 'zero'
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of reduction.
Give the orbital diagram of the following:
Magnesium chloride
Give the orbital diagram of the following:
Methane
State the type of bonding in the following molecules.
Water,
The element that would form cation due to the loss of electrons during the chemical reaction is ______.
Choose the odd one out and write the reason:
