Question

The two naturally occurring isotopes of hydrogen are (atomic mass = 1.00783 ; abundance 99.9885%) and (atomic mass = 2.01410 ; abundance 0.0115%). which peak will be the largest and which the smallest?

Answer 1

The largest and smallest peak will be;

Largest Peak = Peak 2H - 2H

Smallest Peak = Peak 1H - 1H

Steps

3 peaks will make up the mass spectrum's peak count.

Each peak's relative atomic mass is as follows:

• Peak 1H - 1H = 2.01566 amu
• Peak 1H - 2H = 3.02193 amu
• Peak 2H to peak 2H = 4.02820 amu

The highest and lowest peaks are;

Peak 2H - Peak 2H = Largest Peak

Peak 1H - 1H is the lowest peak.

The two hydrogen isotopes that exist naturally have atomic masses of 1.00783 and 99.9885%, respectively.

Atomic mass is 2.01410 and abundance is 0.0115 percent.

The mass spectrum's three peaks are

• 1H - 1H,
• 1H - 2H,
• 2H - 2H.

The relative atomic masses of each peak are as follows:

• Peak 1H - Peak 1H = 1.00783 + 1.00783 = 2.01566 amu
• Peak 1H-to-2H relative atomic mass is 1.00783 + 2.01410 = 3.02193 amu.
• Peak 2H - 2H's relative atomic mass of 2.01410 + 2.01410 = 4.02820 amu

leads us to believe that it is

Largest Peak = Peak 2H - 2H

Smallest Peak = Peak 1H - 1H

learn more about mass spectrum here

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