Answer:
friction
Explanation:
electrons from one uncharged object to another uncharged object by rubbing. When two uncharged objects rub together, some electrons from one object can move onto the other object. hope this is your right
and not just a riddle
it is negative acceleration
13
The parent atom,
Z
=
, necessarily has 13 electrons.....
And thus the trivalent ion has 10 electrons.....to give the tripositive charge.
Its 5
a
