1/ As a metal has higher melting point than a nonmetal has, we can guess that sample A is a metal.
2/ The melting point is over 1000 gradius Celcius: 1083 - it's not a low value. And as the sample conducts heat, it is not the element of period N3 in the periodic table, because elements in period 3 do not conduct electricity.
I can not see what the questions 2-3 in your picture is. I answered the question above the table: What can the student conclude about thenidentity of Sample A.
the largest known star in the universe is uy scuti, a hypergiant with a radius around 1,700 times larger than the
0.3x0.21x0.08kg=mass 1 sheet
mass 500 = 500xmass 1
volume pile = 0.3x0.2x0.048
density=mass/volume= 500xmass 1/0.3x0.2x0.048
v patient student