The correct answer is approximately 1.95g. First, take (1.022*10^10)/(1.277*10^9). This is the same as time elapsed/half-life. This gives you 8, which is the number of half lives. Then multiply mass (500.3g) by (1/2)^8, resulting in 1.95g, which is the answer.
<u>Answer:</u> The number of atoms of carbon present in given number of moles are 
<u>Explanation:</u>
We are given:
Number of moles of carbon = 
According to mole concept:
1 mole of an element contains
number of atoms.
So,
of carbon will contain =
number of atoms.
Hence, the number of atoms of carbon present in given number of moles are 
Answer:
5 million million atoms can fit at the end of a needle