Answer:
The half-life varies depending on the isotope.
Half-lives range from fractions of a second to billions of years.
The half-life of a particular isotope is constant.
Explanation:
proton number and neutron number sums up to form the mass number
Answer:
Explanation:
scientific notation of 750000 is
7.5*10^5
Ok I’m not gonna do anything with my phone I’m gonna send you a picture
