Given below are the atomic numbers of some group 14 elements. The atomic number of the element with the lowest melting point is:
Show Hint
- 14
- 6
- 82
- 50
The Correct Option is D
Solution and Explanation
The objective is to determine which Group 14 element, identified by its atomic number, exhibits the lowest melting point. The provided atomic numbers correspond to the following elements:
- Carbon (C) - Atomic number 6
- Silicon (Si) - Atomic number 14
- Tin (Sn) - Atomic number 50
- Lead (Pb) - Atomic number 82
Group 14 consists of Carbon, Silicon, Germanium, Tin, and Lead. A key characteristic of these elements is their variable melting points. Typically, melting points decrease down the group, with minor variations attributed to structural differences.
Comparing the melting points:
- Carbon (C) has an exceptionally high melting point in its graphite and diamond forms.
- Silicon (Si) possesses a high melting point owing to its covalent bonding structure.
- Tin (Sn) exists in various allotropes, including grey tin, which has a low melting point.
- Lead (Pb) has a comparatively low melting point, though it is higher than that of grey tin.
Of the listed elements, Tin exhibits an allotrope with the lowest melting point. Specifically, grey tin, a metallic allotrope, has a lower melting point than the other elements mentioned.
Therefore, the element with the lowest melting point among those provided is Tin (Atomic number 50).
Correct Answer: 50
Top Questions on Periodic Trends In Properties Of Elements
- Given below are two statements:
Statement I: \( \mathrm{C<O<N<F} \) is the correct order in terms of first ionization enthalpy values.
Statement II: \( \mathrm{S>Se>Te>Po>O} \) is the correct order in terms of the magnitude of electron gain enthalpy values.
In the light of the above statements, choose the correct answer from the options given below:- JEE Main - 2026
- Chemistry
- Periodic Trends In Properties Of Elements
Given below are two statements:
Statement (I): According to the Law of Octaves, the elements were arranged in the increasing order of their atomic number.
Statement (II): Meyer observed a periodically repeated pattern upon plotting physical properties of certain elements against their respective atomic numbers.
In the light of the above statements, Choose the correct answer from the options given below:- JEE Main - 2025
- Chemistry
- Periodic Trends In Properties Of Elements
The correct orders among the following are:
[A.] Atomic radius : \(B<Al<Ga<In<Tl\)
[B.] Electronegativity : \(Al<Ga<In<Tl<B\)
[C.] Density : \(Tl<In<Ga<Al<B\)
[D.] 1st Ionisation Energy :
In\(<Al<Ga<Tl<B\)
Choose the correct answer from the options given below :- JEE Main - 2025
- Chemistry
- Periodic Trends In Properties Of Elements
- The electronegativity of the Silicon (Si) atom using Allred-Rochow scale of electronegativity is. Given: The covalent radius for Si atom = 1.175 Angstrom.
- CUET (PG) - 2025
- Chemistry
- Periodic Trends In Properties Of Elements
- Want to practice more? Try solving extra ecology questions todayView All Questions
