Ionization energy increases as you move left to right in a period . that's why noble gases have high ionization energies.
shielding effect increases from top to bottom in a group atomic size also increases from top to bottom in a group
Ionic bonding which is the attraction between the cations(metal) and anions (non metal).
Metallic bonding is the electrostatic force of attraction between the fixed cations and the delocalized electrons.
The types of intermolecular forces that occur in a substance will affect its physical properties, such as its phase, melting point and boiling point.
2 mol of H2S react with 3 mol of O2
5.6 mol of H2S react with =5.6×3/2=8.4 mol of O2