Solved: An Unknown Element Contains 35 Protons, 36 Electro... | ...
Answer:
option A
please mark it brainliest
<span>The mass number given on
the periodic table is a weighted average of all the isotopes. You get the exact mass of
an isotope by adding the protons(atomic number) to the
number of neutrons in that isotope.</span>
Answer:
the anwser is; B: increasing its speed
