which is sodium, t, na, pb, which one is tungstun, w, c, n, which one is arsenic , As, mg, bi, pick silver, Ag, rn, p, hydrogen, h, Sn, K, what is the melting point of iron , 1538 °C, 6 °C, 6000000°C, melting point of lithium , 180.5° C, -259.2 °C, 80 °C, melting point of carbon, 3,550 °C, 54.9 °C, -93°C.

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