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प्रश्न
How many electrons are required or released by each atom in calcium oxide to attain the nearest noble gas configuration?
उत्तर
In Calcium oxide, oxygen needs 2 electrons.
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संबंधित प्रश्न
Mention the basic tendency of an atom which makes it to combine with other atoms.
Match the atomic number 4, 8, 14, 15 and 19 with each of the following:
(a) A solid non-metal of valelncy 3.
(b) A gas of valency 2.
(c) A metal of valency 1.
(d) A non-metal of valency 4
Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond).
Give reason
Argon does not react.
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of reducing agent.
\[\ce{^24_12Mg}\] 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.
Write down the electronic configuration of
(i) chlorine atom (ii) chlorine ion
State the type of bonding in the following molecules.
Calcium oxide
Sodium having atomic number 11, is ready to ______ electron/ electrons to attain the nearest noble gas electronic configuration.
Draw the electron distribution diagram for the formation of Carbon di oxide (CO2 ) molecule.
