If two shells overlap, they start to share electrons and thus, a bond is formed
Answer:
Ionic compounds don't conduct electricity very well because the charge carriers can't move through the crystal. They can conduct heat because the kinetic energy itself is the "heat carrier”.
Hope this helps :)
Answer:
C would be the right answer
n = m/M = 2/18 = 1/9 ~0,1 mol
Molar mass Mg = 24.3 g/mol
1 mole mg ------------ 24.3 g
?? moles mg --------- 4.75 g
4.75 x 1 / 24.3 => 0.195 moles of Mg
hope this helps!