The Hammond postulate describes the relationship between the energy of the transition state and the product distribution in a reaction that is capable of following more than one pathway.
1. Fill in the blanks with the appropriate options given in below:
The Hammond postulate states that reactions which are thermodynamically endothermic and kinetically have transitions states that occur in the reacton time frame, and resemble the in terms of energy and structure.
Options:
a. slow
b. fast
c. late
d. early
e. products
f. reactants

slow, late, products

Explanation:

Hammond's postulate in physical organic chemistry helps to rationalize the transition states of species. For endothermic reactions, the transition states look more like the products in structure. Hence endothermic reactions which are kinetically slow have transition states which occur late in the reaction and resemble the products more closely.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer