Radioaetive Deeny Data Radioactive
Half Life
Isotope
Dieintegration
(years)
Carbon 14
87 x 10°
13
Potassium 40
1.8 x 10°
Uranium 238
192
po x 10"
2007 4.8 * 100
Uranium 230
ANA
Rubidhim 37
RD
40 x 100
# which doethe isotope takes the greatest amount of thne to disintegrate
(1) potassium -40

Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. which most likely affects the development of these traits? testes ovaries prostate gland vulva

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

The cluster of developing cells from conception until birth is called an