Neon
neon
This gas is krypton.
neon
Lead is a not a noble gas; lead is a post-transition solid metal, group 14 , period 6 of the periodic table of Mendeleev.
Neon
No, lead is a metal.
neon
neon
This gas is krypton.
neon
Lead is a not a noble gas; lead is a post-transition solid metal, group 14 , period 6 of the periodic table of Mendeleev.
jhgsf4134 kairl619
argon (atomic number 18) is the closest to calcium (atomic number 20)
argon
[Xe] 4f14 5d10 6s2 6p2
Neon --- Closest noble gas on the periodic table.