Hello,
The mass number is protons+neutrons=mass number. In this case, we have protons+nuetron=164.The atomic number is simply the number of protons so we have 43+neutrons=164. Subtracting 43 from both sides we get nuetrons=121. Hope this helps!
The dependence of a measured value on a controlled value should be the correct answer.
It could be rock music because of his face expresion
Answer:
3
Explanation:
During a crash 3 types of collisions can occur.
