K = 19 2,8,8,1 electronic configuration and oxidation state is +1 .K Latin name kalium. mass number 39 At= 18 2,8,8 E.C and O.S= 0 mass no 39.98. read more
K = 19 2,8,8,1 electronic configuration and oxidation state is +1 .K Latin name kalium. mass number 39 At= 18 2,8,8 E.C and O.S= 0 mass no 39.98 read more
Argon is a chemical element with symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third-most abundant gas in the Earth's atmosphere, at 0.934% (9340 ppmv). read more