Describe how to use the information from the mass spectrum to determine the average atomic mass of the element.

Explanation:

Before answering the question, we introduce two definitions:

- Isotope: isotopes of the same element are atoms of the same element having same number of protons but different number of neutrons --> this means that they have same atomic number, but different atomic mass

- Relative abundance: each isotope is present with a certain relative abundance, which gives the % of that isotope compared to the total.

When we know the mass spectrum of a certan element, it means we know the relative abundance of each isotope, together with the atomic mass of the isotope.

For instance, we can have:

- Isotope 1 with atomic mass and relative abundance , where is a fraction in the form (it gives the percentage of that isotope relative to the total)

- Isotope 2 with atomic mass and relative abundance

... and so on

So, the average atomic mass of the element is calculated with the  formula:

So, basically by calculating the sum of the product of each atomic mass by its relative abundance.

we need answer choices

d. platinum would have the greatest temperature increase because it has the lowest specific heat.