True or false? Simple molecular substances contain delocalised electrons.

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

200. ml of 3.00 m nacl solution is diluted to a final volume of 500. ml. what is the molarity of the final solution?