Question

Give the nuclear symbol (isotope symbol) for the isotope of platinum that contains 117 neutrons per atom.

Answer 1

The nuclear symbol for a platinum isotope with 117 neutrons is ¹195Pt⁸, where 195 is the mass number and 78 is the atomic number of platinum.

Step-by-step explanation:

The student is asking about the nuclear symbol for a platinum isotope with 117 neutrons. To find this, we first need to know the atomic number of platinum, which is 78. This atomic number represents the number of protons in the nucleus of platinum. Since the mass number (A) of an isotope equals the number of protons plus the number of neutrons, the mass number for this platinum isotope can be calculated as 78 (protons) + 117 (neutrons) = 195. Therefore, the nuclear symbol for the platinum isotope with 117 neutrons is ¹195Pt⁸.

Answer 2

Many elements in their atoms can have the same number of protons but vary in the number of neutrons, because these particles have no charge do not significantly affect the element but form what are called isotopes. The representation of an isotope is described in the following figure:

The atomic mass is the sum of the neutrons plus the protons. And the atomic number corresponds to the number of protons.

In this case, for platinum, we have 78 as the atomic number.

So, the mass number will be 78 protons + 117 neutrons = 195.

The isotope symbol will be:

`^(195)_(78)Pt`