Problem: I think I discovered element 120, which would be the last element in the 2A column. It consists of two isotopes. The abundance of the first isotope is 68.00% and its atomic mass is 294.6 u. The abundance of the second isotope is _________ (you can figure this out since there are only two isotopes) and its atomic mass is 297.8 u. What is the average atomic mass of the element? a. 296.2 u b. 295.0 u c. 296.8 u d. 295.6 u e. 297.4 u  

FREE Expert Solution
94% (445 ratings)
Problem Details

I think I discovered element 120, which would be the last element in the 2A column. It consists of two isotopes. The abundance of the first isotope is 68.00% and its atomic mass is 294.6 u. The abundance of the second isotope is _________ (you can figure this out since there are only two isotopes) and its atomic mass is 297.8 u. What is the average atomic mass of the element?

a. 296.2 u

b. 295.0 u

c. 296.8 u

d. 295.6 u

e. 297.4 u

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Atomic Mass concept. You can view video lessons to learn Atomic Mass. Or if you need more Atomic Mass practice, you can also practice Atomic Mass practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofI think I discovered element 120, which would be the last el...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 4 minutes and 9 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Hamlet's class at South Florida State College.