Assertion: atom's energy | /r/HasProperty | large enough 385 kj/mol
Facets:
value: unlike copper
type: OTHER
value: unlike gold
type: OTHER
Source sentences:
text: Unlike copper and gold, the energy required to excite an electron from the filled d band to the s-p conduction band in silver is large enough (around 385 kJ/mol) that it no longer corresponds to absorption in the visible region of the spectrum, but rather in the ultraviolet; hence silver is not a coloured metal.