You are given 18.6 g of mg. do you have a mole of magnesium.

No, 18.6 g of Mg contain 0.765 mole.

Given that,

amount of Mg we have = 18.6

By looking at periodic table:

Molar mass of magnesium = 24.305 u (g/mole)

It means one mole of magnesium contain 24.305 grams of magnesium

So,

24.305g = 1 mole

1g = 0.04114379757 mole

18.6g = 0.765 mole

Hence, 18.6 g of Mg contains 0.765 mole

             24.305 g of Mg contains a mole of Mg.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.