Kinetics

VITEEE 2015 Guidance › Physical Chemistry questions › Kinetics

²⁷Al₁₃ is a stable isotope,²⁹Al₁₃ is expected to disintegrate by
A. alpha emission
B. beta emission
C. positron emission
D. proton emission.

#Chemistry #Physical Chemistry

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6 Answers

Gone.. ·2010-02-14 01:43:21

Ans given is B.

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Gone.. ·2010-02-14 01:50:29

ok..
its an iit q (1996)

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govind ·2010-02-14 02:31:52

@Asish Î± emission increases the n/p ratio..whereas Î² emission decreses it..initial n/p = 1.23
²⁹Al₁₃ â†’ Î± + ²⁵Na₁₁ n/p = 1.27
²⁹Al₁₃ â†’ Î² + ²⁹Si₁₄ n/p = 1.07

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Gone.. ·2010-02-14 04:28:08

ok..then B should be right.

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Manmay kumar Mohanty ·2010-02-14 05:07:59

Definitely B) is correct since in case of B) n/p ratio is 1.07 which is said to be more stable than 1.27 .

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Shantanu Thakur ·2017-09-17 09:58:05

But when Î² particle is released, the atom itself will change right? Will it not become Silicon atom?

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Kinetics

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