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Standard IX
Chemistry
Atomic Mass and Atomic Mass Unit
38. The isoto...
Question
38. The isotopic abundance of C-12 and C-14 is 98% and 2% respectively. What would be the number of C-14 isotope in 12g carbon sample?
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Q.
If isotopic distribution of
C
−
12
and
C
−
14
is 98 % and 2 % respectively, what would be the number of
C
−
14
isotope in
12
g
m
carbon sample?
Q.
The radioactive isotope of carbon is
C
14
Q.
12
C
and
14
C
isotopes are found as 98% and 2% respectively any sample. Then, the number of
14
C
atoms in 12 g of the sample will be:
Q.
If isotopic distribution of
C
−
12
and
C
−
14
is
98
%
and
2
%
respectively, then the number of
C
−
12
atoms in
14
g of carbon is:
Q.
Radio active carbon
C
14
in a wood sample, decays with a half life of 5700 years. The fraction of the radio active carbon
C
14
, that remains after a decay period of
17
,
100
years is :
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