How do the bond types at the atomic level relate to the structure of the material at the macroscopic level?

did anyone actually do this? like if anyone has submitted this i rly need .

i do not get it   at all

gold is my favorite solid.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.