Copper has the structure of a typical metal. It has a lattice of positive ions and a “sea ‘of mobile electrons. The lattice can accommodate ions of a different metal.
Give a different use of copper that depends on each of the following.

(i) Ability of the ions in the lattice to move past each other (1m)

(ii) Presence of mobile electrons (1m)

(iii) Ability to accommodate ions of a different metal in the lattice

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