It’s 25 because I already took the testing
Here is the formula that you need to know for this problem:
Number of proton (atomic number) + Number of neutrons = Mass number
So,
45 + Number of Neutrons = 161
Number of neutrons = 161 - 45
Number of Neutrons = 116
get this cleanser and a different one.
get some dirt.
get two clocks
put equal amounts od cleanser on the dirt and start both clocks
when one has workred stop its clock. same for other.
compare times
Answer:
"In water, the speed of light is v01.33=2.26 x 108 m/s."
Explanation:
Answer: I will say ''Law of conservation of energy.''
Explanation: Please tell me the answer you get!:)