What kind of metal is the lump you found?
LOOK AT THE CHART
-impossible to know
Volume of solid metal = 102.6ml - 100ml = 2.6ml.
Mass of solid metal = 50g.
Density = Mass / Volume = 50g / 2.6ml = 19.2g / cm³.
Also from our knowledge, only gold metal is yellowish here.
Hence the answer is gold metal.