Given below are the atomic numbers of some group 14 elements. The atomic number of the element with lowest melting point is :

Group 14 elements with the given atomic numbers: C(6), Si(14), Sn(50), Pb(82). Which has the lowest melting point?

Melting points of Group 14 elements:

C (diamond): ~3550°C, Si: 1414°C, Ge: 938°C, Sn: 232°C, Pb: 327°C

Among the given options, Sn (Z=50) has the lowest melting point at 232°C.

The correct answer is Option 4: 50 (Tin/Sn).

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