# Discover the Mass Number of Element X

• hockeyfghts5
I hope that helps!In summary, to find the mass number of element X, you must take the average of the masses of its two isotopes, 108X and 114X, which is determined by their respective percentages in nature. This can be calculated by multiplying each mass by its percentage, adding them together, and dividing by 100. In this case, the calculated average mass number for element X is 110.05.
hockeyfghts5
how would you set this up to solve this problem

A newly discovered element occurs naturally as the two isotopes: 108X and 114X. In nature 65.8 % of is the isotope 108X and the remaining percentage is 114X. What is the mass number for element X.

hockeyfghts5 said:
how would you set this up to solve this problem

A newly discovered element occurs naturally as the two isotopes: 108X and 114X. In nature 65.8 % of is the isotope 108X and the remaining percentage is 114X. What is the mass number for element X.

Well basically when giving the mass number for an element, in your case X you take the average of the masses, which obviously changes with the percentages of the respective ones, in this case

(( 65.8 * 108 ) + ( 34.2 * 114 )) / 100 = It's average mass number which turns out to be 110.05!

Sorry if I can't explain it that well, but basically, you take the mass of each one * the percentage of it, add them all up, and divide it by 100. If you're still struggling pm me

thanks

## What is the mass number of element X?

The mass number of an element is the sum of the number of protons and neutrons in the nucleus of an atom of that element. It is represented by the symbol A.

## How do you determine the mass number of element X?

To determine the mass number of an element, you can look at the periodic table to find the atomic number and the atomic mass of the element. The atomic mass is the decimal number listed below the symbol of the element. Round this number to the nearest whole number to get the mass number.

## Why is knowing the mass number of an element important?

The mass number of an element is important because it is used to identify and distinguish different isotopes of the same element. It also helps in calculating the atomic mass of an element, which is used in various chemical and physical calculations.

## Can the mass number of an element change?

The mass number of an element can change if the number of neutrons in the nucleus changes. This results in the formation of different isotopes of the same element. However, the number of protons in an element's nucleus always remains the same, as it determines the element's atomic number.

## What is the difference between mass number and atomic number?

The mass number of an element is the sum of the number of protons and neutrons in the nucleus, while the atomic number is the number of protons in an element's nucleus. The mass number can vary between different isotopes of the same element, while the atomic number remains constant for a particular element.

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