Which of the following are necessary for successful collisons to occur? Both (a) and (b)
Both (a) and (b)

Favorable collision geometry
Favorable collision geometry

High Temperature
High Temperature

Sufficient Kinetic energy

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally

it's 3.2 on edge, i just took the test.