What is the atomic number of potassium and argon?

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

The mass given on the periodic table is the weighted average of the abundance of isotopes. Because heavier isotopes (more neutrons) of argon are more abundant than potassium's, by pure statistics, argon will appear with a greater mass on the periodic table. read more