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topjm [15]
3 years ago
15

What distinguishes two different isotopes of an element is the number of neutrons contained in their nucleus. how many protons a

nd neutrons are there in the nucleus of the heavier oxygen isotope, 18 8o? let z be the number of protons (the atomic number) and n the number of neutrons. separate your answers with a comma?
Chemistry
1 answer:
12345 [234]3 years ago
6 0
The Atomic Number and Atomic Mass of ¹⁸O₈ are 8 and 18 respectively.

Atomic Number:
                         Atomic Number of Element is the Number of Protons contained by the Element. So, there are 8 Protons in ¹⁸O₈.

Atomic Mass:
                     Atomic Mass of Element is the total number of Protons and Neutrons present in the Nucleus of that element.
So,
                    Atomic Mass  =  # of Protons + # of Neutrons

As the Atomic mass of ¹⁸O₈ is 18 and it has 8 protons, So # of Neutrons are calculated as,

                     # of Neutrons  =  Atomic Mass - # of Protons

                     # of Neutrons  =  18 - 8

                     # of Neutrons  =  10

Result:
             In ¹⁸O₈ Number of Neutrons are 10, Number of Protons are 8.

                                             Z  =  8 , n  =  10
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