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प्रश्न
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
पर्याय
2,8,9
8,2,9
2,8,8,1
1,2,8,8
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उत्तर
2,8,8,1
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संबंधित प्रश्न
How do atoms attain noble gas configuration?
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.
How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
How many electrons are required by each atom mentioned in (a) to attain the nearest noble gas configuration?
What is the contribution of the following in atomic structure?
Democritus
Give a reason
Physical properties of isotopes are different.
Give reason
Argon does not react.
State the type of bonding in the following molecules.
Water,
Identify the following reaction as either oxidation or reduction:
O + 2e- → O2-
Identify the following reaction as either oxidation or reduction:
K - e- → K+
How many electrons are required or released by each atom in carbon tetrachloride to attain the nearest noble gas configuration?
