Answer:
solids
Explanation:
through solids because the molecules are closer together
Inner core: Iron and nickel
Outer core: Molten iron and nickel
Mantle: Magnesium and iron
Crust: Silicon, magnesium, iron, aluminium, oxygen, etc.
V₁ = 420 mL
T₁ = 210 K
V₂ = ?
T₂ = 250 K
(Answer is 500 mL)
The little number at the top of the element
Answer: difference in Vander Waals forces
Explanation:
The intermolecular force of attraction between the molecules in chlorine is WEAKER than that of Bromine.
This force is known as VANDER WAALS forces. And it DECREASES down the group; so Chlorine which is placed higher is a GAS, while Bromine placed lower in Group 7 is a LIQUID.