Alkali metals are good conductors of electricity due to their free-moving electrons.

Alkaline earth metals have a higher density than alkali metals.

Alkanes are non-polar molecules and are generally insoluble in water.

Alkenes are unsaturated hydrocarbons due to the presence of at least one double bond.

Alkynes contain at least one triple bond between carbon atoms.

Aromatic compounds are characterized by a planar structure and exhibit unique stability due to resonance, but they are generally less reactive than alkenes.

Aromatic hydrocarbons contain a benzene ring.

Carboxylic acids have high boiling points due to hydrogen bonding.

Diatomic hydrogen (H2) is highly flammable and can easily ignite in the presence of oxygen.

Elastomers are known for their elastic properties, allowing them to stretch and return to their original shape.

Fluids are often considered incompressible for practical purposes, especially in hydrodynamics.

Group 13 elements typically form covalent compounds due to their electron configuration.

Group 14 elements typically form covalent bonds due to their tetravalent nature.

Group 14 p-block elements typically form covalent bonds due to their valence electron configuration.

Group 15 elements, such as phosphorus, exist in multiple allotropes.

Group 17 elements, also known as halogens, are highly electronegative.

Halogens exist as diatomic molecules (e.g., Cl2, F2) in their elemental form.

Heavy water (D2O) has a higher boiling point than regular water (H2O).

Heavy water (D2O) has a higher boiling point than regular water (H2O).

Hydrogen chloride (HCl) is a gas at room temperature and is highly soluble in water.

Hydrogen chloride (HCl) is a colorless gas that is soluble in water.

Hydrogen gas is colorless and odorless.

Hydrogen is classified as a non-metal.

Ionic compounds are generally soluble in water due to the strong interactions between ions and water molecules.

Lanthanide contraction refers to the decrease in atomic radius across the lanthanide series due to poor shielding of f-electrons.

Lanthanides are known for their high density and are typically metallic in nature.

Metals are typically good conductors of heat and electricity and have a shiny appearance.

Noble gases are colorless and odorless under standard conditions.

P-block metals, such as Lead and Tin, are generally brittle.

Carbon can form multiple bonds, such as double and triple bonds, due to its tetravalency.