How will positron emission affect the atomic number and mass number of the atom?

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene

What are the names of these two interactions with cattle and how do they differ from each other