Chemistry High School

This is how platinum appears in the periodic table.A purple box has P t at the center and 78 above. Below it says platinum and below that 195.08. Rounded to the nearest whole number, what is the atomic mass of platinum? 78 117 195 273

Answers

Answer 1

Answer:

3.) 195

Explanation:

Because platinum is 195.079 amu (its on the periodic table)

Answer 2

A purple box has P t at the center and 78 above. Below it says platinum and below that 195.08. Rounded to the nearest whole number, 195 is the atomic mass of platinum. Therefore, option C is correct.

What is an atomic mass number ?

The number of protons an element contains determines its atomic number, which is used to distinguish one element from another. The total number of protons and neutrons in an element determines its mass number.

The mass number is the total number of protons and neutrons in the nucleus. This is due to the fact that each proton and neutron has a mass of one atomic mass unit (amu). You can determine the mass of the atom by multiplying the total number of protons and neutrons by 1 amu.

Because its numerical value is equal to the element's molar mass, the average atomic mass is helpful. In turn, this helps determine how much of a solid.

The atomic mass of platinum is 195. Because atomic mass is always the bottom number below the name of the element.

Thus, option C is correct.

To learn more about the atomic mass number, follow the link;

https://brainly.com/question/4408975

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