Video Transcript
The following figure shows the
nuclei of two atoms. Are the atoms of the same element
or of different elements?
Recall that what element and atom
is an atom of depends on how many protons are contained in the atom’s nucleus. If two nuclei contain different
numbers of protons, they must be nuclei of atoms of different elements.
Let’s consider the nuclei in the
question. We can see that these nuclei
contain different numbers of protons. Therefore, the correct answer is
that these are the nuclei of atoms of different elements.
