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प्रश्न
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a metal.
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उत्तर
Electronic configuration of element A = (2, 8, 8, 1) at atomic no. 19
∴ Element B having 1 electron in outermost orbit is a Metal.
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संबंधित प्रश्न
How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
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\[\ce{Fe^2+ - e- -> Fe^3+}\]
Give reason
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Explain
Duplet rule for the formation of hydrogen
Write down the electronic configuration of
(i) chlorine atom (ii) chlorine ion
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The element that would form cation due to the loss of electrons during the chemical reaction is ______.
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