An ionic isotope has 49 protons, 50 electrons, and 55 neutrons. • What is the name of the element?
What is the isotope symbol in the one-line format (e. g., hydrogen-2)?
Is this a cation or is this an anion? Explain how you know.

i had this on my unit activity, i can you if you are a plato student. are you a plato student?

the answer your looking for is c).

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.