If an atom contains 13 protons, then it has <u>13 electrons.</u>
Answer:
hope this will help you
have a great day
Explanation:
please mark me as the brainliest
Third
every action has an opposite and equal reaction
MEMORIZED E=h*v h=6.626x10-34J*s INFORMED v=7.21x1014S-1CALCULATE E=h*v E=(6.626x10-34J*s)*(7.21x1014s-1) The "s" cancels out. s-1=1/s so you get s/s so you are left with Solution 4.78 10-19 J OR .478 aJ <span>Apex - 467 nm ^.^ hopefully thats the correct thing</span>
The correct answer is C) becuse without certain medicine they will dieeeee