Most elements' names end in the suffix -ium. this practice started around the year 1800, with many elements discovered before that having a more common name. however, some elements are more recently discovered and don't end in -ium. do you notice any patterns for these elements?

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.