Strontium-90 (90Sr) is a radioactive isotope of strontium, with a half life of 28,79 years.
The outermost principle energy level for strontium is the 5th energy level.
It emits Beta radiation.
beta particle In beta decay a neutron is converted into a proton, electron (also called a beta particle) and an electron antineutrino.
A beta particle is a high energy electron. An alpha particle is a helium nucleus. A gamma ray is a high energy photon.
Yttrium-90 "the slash is important"
Strontium-90 (90Sr) is a radioactive isotope of strontium, with a half life of 28,79 years.
The outermost principle energy level for strontium is the 5th energy level.
It emits Beta radiation.
strontium
1975
Mean beta energy is 30% of the maximum energy.
1975
1. Gross Beta 2.Radium -226 3.Strontium -90
beta particle In beta decay a neutron is converted into a proton, electron (also called a beta particle) and an electron antineutrino.
39 APEX
Because there is more energy available, and beta+ decay requires an energy contribution, as opposed to beta-.