Answer:
About 30.17 years
Explanation:
About 94.6% decays by beta emission to a metastable nuclear isomer of barium: barium-137m . The remainder directly populates the ground state of barium-137, which is stable.
Answer:
Polystyrene is a versatile plastic used to make a wide variety of consumer products.
Explanation:
WHat's a concept map again?
I forgot...
It’s
1.A
2.C
3.B
hope it’s correct