How many moles of gold are equivalent to 1.204 × 1024 atoms?

Explanation:

It is known that the value of Avogadro's number is .

Therefore, calculate moles of gold atoms as follows.

    Moles of gold atom =

                                    =

                                    = mol

                                    = 1.99 mol

Thus, we can conclude that 1.99 mol of gold atoms are equivalent to atoms.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

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