The first one is the answer
isotopes of an atom have different number of neutrons . the number of protons are not different in isotopes of an atom
<span>C. Their direction of motion is south and north. </span>
0.428571429 moles is your exact answer. Hope this helps!!! (:
Cathode rays are a stream of negatively charged particles or electrons in vacuum tubes. They were first seen by Johann Hittorf in 1869. They are named since they are emitted by electrode or cathode. In order to release the electrons, the electrons should first be detached from the atoms of the cathode.
The amount of force is what this is for
