B Bi-214
19.9 m
B
0.
Pb-210
223 a
Po - 214
44
1.64x10
Element Names
U - uranium
Th-thorium
Ra-radium
Pa - protactinium
Rn - radon
Po - polonium
Bi-bismuth
Pb-lead
Half-life units
a - years
d-days
h-hours
m-minutes
S-seconds
Bi-210
5.0 d
B
Pb-206
Stable
Po-210
138.4 d
O2
Which of the first four radioisotopes in the decay series has the longest half-life?
O Pa-234
Th-234
U-234
U-238
Amutation is basically the change in the gene, caused by alteration of single based units in the dna, or the genes or chromosomes were rearranged in the dna
Ineed the answer asap. in order to be considered alive, an organism must simultaneously possess the characteristics of homeostasis, heredity, cells, reproduction, and
When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it