The modern periodic law states that properties of elements are periodic functions of:

Ionization energy generally increases across a period because:

The element with electronic configuration [Xe] 4f¹⁴ 5d¹ 6s² belongs to:

Electronegativity of fluorine on Pauling scale is:

Atomic radius decreases across a period due to:

The diagonal relationship exists between:

Noble gases have:

Electron affinity is most negative for:

The number of periods in the modern periodic table is:

Metallic character increases:

Second ionization energy is always _____ first IE:

Lanthanoid contraction is the decrease in:

The element with highest first ionization energy is:

Transition elements are in:

The property that shows periodicity is:

Oxidation state most commonly shown by all transition metals is:

Shielding effect increases with:

The anomalous pair in Mendeleev's periodic table was:

Which block elements are called representative elements?

Amphoteric oxides are formed by: