The correct option is A 98.90 % Let the percentage abundance of carbon-12 be x. Then the percentage abundance of carbon-13 will be 100−x

Carbon occurs in nature as a mixture of 12C and 13C. The average atomic mass of carbon is 12.011. What is the % abundance of 12C in nature? 98.9%; 89.9%; 88.9% ...

(Isotopic Mass), Percentage Abundance. Carbon-12, 12.0000, 98.90 %. Carbon-13, 13.0033, 1.10 %. To find the average atomic mass for Carbon: Average Atomic Mass ...

The vast majority of all carbon found on Earth is 12C. Almost 99% of all carbon on Earth is of this form. While only approximately 1% of all carbon on Earth is ...

Reason: Carbon - 12 isotope is the most abundant isotope of carbon and has been chosen as standard.

The natural abundance of . 12Mg24 is 78.99% by mass. Calculate the abundances of the other two isotopes. An atom of an element is 13 times heavier than the ...

The ratio of isotopes is called isotopic abundance. For carbon atom, the most abundant substance is 12C, and 13C atoms are observed at the rate of 12C. Isotopic ...

Carbon (C, atomic number 6) occurs in nature predominantly as the stable isotopes carbon-12 (98.89%) and carbon-13 (1.1%).

The average atomic mass of carbon will be closest to Carbon-12. This is because the abundance of Carbon-12 is significantly higher (98.93%) compared to Carbon- ...