File talk:Isotopes and half-life.svg

Are you sure this is right, because I doubt an element with one nutron and 0 protons (hydrogen) is unstables. It looks backwards.

An isotope with one neutron and zero protons is the free neutron, which decays to ¹H with a half-life of about 15 minutes. Double sharp (talk) 05:42, 22 January 2012 (UTC)

Color of bismuth.

Shouldn't bismuth be in dark brown instead of black ? MikołajMajewski (talk) 08:06, 7 June 2024 (UTC)