<span>C.
has strong legs for running
</span>
Neutrons are the subatomic particle that remain neutral.
5km/h but always changing direction
Explanation:
The valence electrons determine the group the elements belong in the periodic table. For example, the element sodium, Na, has a valence electron of one and so it belongs to Group 1 in the periodic table. Another example is Aluminium, Al, which has a valence electron of three and therefore it belongs to Group 3 in the periodic table.
Modern humans have been the only species of homo, so true .
