1.661x10 negative 24 squared
The gas flows from higher concentration/pressure to lower concentration/pressure, which is outside the ball.
A stable isotope has just<em> the right number of neutrons for the number of protons </em>(the <em>n:p ratio</em>) to hold the nucleus together against the repulsions of the protons.
A radioactive isotope has either too few or too many neutrons for the nucleus to be stable,
The nucleus will then emit <em>alpha, beta, or gamma radiation</em> in an attempt to become more stable.
Answer:
d) They're studying something for which they cant do an experiment
Explanation:
