Uitleg
X = xe = xenon
K = kr = krypton
N = n = neon
R = Rn = Radon
A = Ar = Arong
H = H
Studiehulp voor school, huiswerk & dagelijks leven
X = xe = xenon
K = kr = krypton
N = n = neon
R = Rn = Radon
A = Ar = Arong
H = H
Ezelsbrug.nl sinds © 1998 -2024 · Disclaimer / (free) copyright