An atom that has 13 protons and 15 neutrons is isotope of the element
a. nickel
b. silicon
c. aluminum
d. phosphorus. why?

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

1. list three scientific reasons cockroaches may fly.