Question

write general properties of group 14 element
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Answer 1

Answer:

Note the Pattern

Property Carbon Silicon

valence electron configuration* 2s 22p 2 3s 23p 2

melting point/boiling point (°C) 4489 (at 10.3 MPa)/3825 1414/3265

density (g/cm 3) at 25°C 2.2 (graphite), 3.51 (diamond) 2.33

atomic radius (pm) 77 (diamond) 111

Explanation:

Answer 2

Answer:

Metallic properties increase down the group. Carbon is a non-metal, silicon and germanium are metalloids, and tin and lead are poor metals (they conduct heat and electricity less effectively than other metals such as copper). Despite their adherence to periodic trends, the properties of the carbon family vary greatly.