What is on the left side of the periodic table that is a non metal

although there is a non-metal on the left side, Hydrogen, it can also act as a cation (something a metal would normally be).

Hydrogen is a very special element. Not only does it have 0 neutrons (not including isotopes), but that one proton results in having one more electron OR one less electron.

Thus, Hydrogen can act as a cation, like in acids, or an anion, like in molecular 

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.