An atom of silver has a radius of and the average orbital speed of the electrons in it is about . calculate the least possible uncertainty in a measurement of the speed of an electron in an atom of silver. write your answer as a percentage of the average speed, and round it to significant digits.

Percentage of uncertainty in average speed of an electron is 0.1756%.

Explanation:

Using Heisenberg uncertainty principle:

Δx = Uncertainty in position

Δp = Uncertainty in momentum

Δv = Uncertainty in average speed

h = Planck's constant =

m = mass of electron =  

We have

Δx = 2 × 165 pm = 330 pm =

Average orbital speed of electron = v =

Percentage of uncertainty in average speed:

answer; economic order quantity;

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