An archaeologist measures the amount of carbon-14 in an ancient clear pot and finds that it has exactly 0.09765625% of the amount of carbon-14 that clay typically contains If carbon 14 has a half-life of 5,700 years approximately how many years old is the ancient clay pot

a electronegativity decreases beacuse the size of nucleus is bigger.

answer carbon and three oxygen atoms;

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally