1 Mole has 6.02 x 10^23 atoms
Answer:
the observed electronic configuration of platinum (Z=78) is [Xe] 4f14 5d9 6s1. It has one unpaired electron in its d-orbital and one unpaired electron in its s-orbital. Platinum is called a NOBLE METAL and it is so stabl
Melting points and boiling points of molecular compound are usually lower than ionic compounds. This is so as only a small amount of energy is required to overcome the weak intermolecular forces of attraction (Van de Waals forces) thus having lower m.p. and b.p.
Ionic compounds require a large amount of energy to overcome the strong electrostatic forces of attraction between the ions, hence having higher mp and bp
Answer:
B) it reacts with sodium metal to form sodium hydroxide and hydrogen gas
Explanation:
B is the only option that show a chemical property, density, freezing, and boiling points are physical properties.