Asoil solution contained 12 ppm ca+2, 3 ppm mg+2, and 4 ppm k+[assume 10 g soil (ph 5) was extracted with 1 l bacl2solution]. estimate the cec. if the measured cec was 14 meq/100g soil, explain why there might be a difference in the measured and estimated cec?

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.