Question

In the graph, number of protons are plotted vs number of neutrons from the element A to G and H(hydrogen). Max. number of neutrons are present in one formula unit of

• A. A$_2$E
• B. DE$_2$
• C. GE
• D. DH$_4$E

Answer 1

Answer: (D)

DH$_4$E

Answer 2

From the graph, we find the number of neutrons for each element: A(1), B(2), C(2), D(4), E(8), F(10), G(12), H(14). Calculate the total neutrons for each formula unit: A) A$_2$E: $2 \times 1 + 8 = 10$ B) DE$_2$: $4 + 2 \times 8 = 20$ C) GE: $12 + 8 = 20$ D) DH$_4$E: $4 + 4 \times 14 + 8 = 68$ The maximum number of neutrons is 68 in DH$_4$E.