There are 13 instances on the periodic table where the atomic mass does not increase along with atomic number. For each of these 13 instances, please provide the atomic number, name, and mass number of each pair of elements. For example: 18-Argon-40; 19-Potassium-39.
Use the back if necessary.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )