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85. Compare a mole of Ag-108 and a mole of Pt-195 using

atoms, protons, electrons, and neutrons.

Sagot :

Explanation:

1 mol of an atom (irregardless of the element) contains the Avogadro's number of atoms. This is given as;

1 mol = 6.022 * 10^23 atoms

For a neutral atom;

NUmber of protons = Number of electrons

The relationship between proton and neutron is given as;

Mass Number = Protons + Neutrons

Ag-108

Atoms =  6.022 * 10^23 atoms

Protons = Atomic Number = 47

Electrons = 47

Neutrons = Mass Number - Protons = 108 - 47 = 61

Pt-195

Atoms =  6.022 * 10^23 atoms

Protons = Atomic Number = 78

Electrons = 78

Neutrons = Mass Number - Protons = 195 - 78 = 117

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