IB SL Chemistry - General Questions

• Going down a group, effective nuclear charge decreases.
• Going across a period, atomic radius decreases.
• Going down a group, atomic radius increases.
• Going across a period, ionization energy increases.
• Going down a group, ionization energy decreases.
• Going across a period, electronegativity increases.
• Going down a group, electronegativity decreases.
• Going across a period, melting and boiling points generally increase.
• Going down a group, melting and boiling points generally decrease.
• Metals generally have a higher melting and boiling point than non-metals.
• Transition metals generally have high melting and boiling points compared to main group elements.
• Noble gases have very low melting and boiling points.