Arranged elements increasing order of their electro negativity values.

Observe the following periodic table : Arrange the following elements XYZ in increasing order of their valencies :

Arrange the second period elements in the increasing order of their first ionization enthalpies. Explain why Be has higher IE_(1) then B.

The elements 'X', 'Y' and 'Z' form oxides which are acidic, basic and amphoteric respectively. The correct order of their electro negativity is

Arrange the metals: Fe, Na, Ag and Zn in Increasing order of their chemical reactivity

Arrange the elements B, N, Be and in the increasing order of their ionization potentials.

Arrange the elements B, N, Be and O in the increasing order of their ionization potentials.

PASSAGE - 3 : In modern periodic table there is gradation in the properties of elements. In a period the Ionisation energy, Electron affinity, Electro negativity, Non-Metallic nature increases. In a group the atomic size, metallic nature, reducing properties and densities of elements increases. The pair of elements with equal electro negativities

Arrange elements of group 13 in the order of increasing their electronegativity.