The nucleus of an atom is made up of protons and neutrons. Then electrons circle around the nucleus.
Answer:
Proton, Neutron, Electron
24.063/8.021 = 3 half lives
(1/2)^3 =1/8
None a lot of hand or sum
Answer:
The base unit for time is the second the other SI units are: metre for length, kilogram for mass, ampere for electric current, kelvin for temperature, candela for luminous intensity, and mole for the amount of substance!
Explanation:
I hope i helped =)
