Math

QuestionWhy is the atomic mass of germanium (Ge) 72.630amu72.630 \mathrm{amu} a fraction between 72 and 7373? A) Isotopes B) Isomers C) Ions D) Allotropes E) Protons.

Studdy Solution

STEP 1

Assumptions1. The atomic mass of germanium (Ge) is 72.630amu72.630 \mathrm{amu} . We need to explain why the atomic mass is a fraction between72 and73

STEP 2

The atomic mass of an element listed in the periodic table is the weighted average of the atomic masses of the isotopes of that element.

STEP 3

Isotopes are atoms of the same element that have different numbers of neutrons. This means that they have different atomic masses.

STEP 4

The atomic mass of an element is calculated by taking the sum of the masses of its isotopes, each multiplied by the natural abundance of that isotope.

STEP 5

The atomic mass of an element is not a whole number because it is a weighted average of the atomic masses of the isotopes of that element.

STEP 6

Therefore, the presence of different isotopes explains why the atomic mass of germanium is a fraction between72 and73.
The correct answer is A) The presence of different isotopes.

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