Please Help 1. What is the parent isotope when Rn-218 is formed as a result of an alpha decay? A. At-212
B. Ra-88
C. Ra-222
D. Ac-228

2. What is the parent isotope when Holmium-166 is formed during an alpha decay?

A. Tm-170
B. Er-170
C. Tb-160
D. Dy-164

i believe it is 40–40–20%

explanation:

the answer is the first option

explanation:

just googled it m8. not that hard

lol

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

the answer is na (sodium)