That would be the Rutherford model :) hope that helps!
Answer:
#2, 4, & 5
Explanation:
In number 1 there are unequal Cu's
In number 3 there are unequal Cl's
<span>Structures that represent 2-methylbutan: a, b, c, d.
</span>a - because methyl group is closer to the right end of butane chain, numbers go from right to left in butane and methyl is on second carbon.
b - because methyl group is closer to the left end of butane chain, numbers go from left to right in butane and methyl is on second carbon.
c - longest chain is butane, from one CH₃ to another CH₃.
d - same as a).
Wavelenght = 253.7 nm = 253.7 x 10^-^9 m
Energy of photon associated with this wavelength,
=
=
= 7.838 X
J
Thus, energy required to rupture C-I bond is 7.838 X 10^(-19) J