Alkali metals possess metallic lustre when freshly cut because:
CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding
Problem
Alkali metals possess metallic lustre when freshly cut because:
(1) They have a hard surface and light is reflected back.
(2) Their crystal structure contains an ordered arrangement of constituent atoms.
(3) They contain loosely bound electrons which absorb photons and then re-emit them.
(4) They are obtained from minerals on which light has been falling for years.