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प्रश्न
How many electrons are required or released by each atom in water molecule to attain the nearest noble gas configuration?
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उत्तर
In water molecule oxygen requires 2 electrons.
संबंधित प्रश्न
Give electron dot diagram of the following:
methane
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.
\[\ce{A^3+ + e- -> A^2+}\]
Define the term:
orbit
Name the following:
The shell closest to the nucleus of an atom
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
Explain
Octet rule for the formation of sodium chloride
\[\ce{^24_12Mg}\] and \[\ce{^26_12Mg}\] are symbols of isotopes of magnesium.
(a) Compare the atoms of these isotopes with respect to :
i. the composition of their nuclei
ii. their electronic configurations
(b) Give reasons why the two isotopes of magnesium have different mass numbers.
Explain the following:
Carbon-12 and carbon-14 both show similar chemical properties.
Explain Octet rule with an example.
