What are the properties of isolated atoms of elements ?

Which of the following statements are the characteristics of isotopes of an element? a) Isotopes of an element have same atomic masses b) Isotopes of an element have same atomic number c) Isotopes of an element show same physical properties Isotopes of an element show same chemical properties

What are the groups, periods and blocks of the elements with atomic numbers 35 and 56?

Relate the electronic configuration of elements and their properties in the classification of elements.

The atoms of elements are with

What factors impart characteristic properties to the transition elements?

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

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. Whic pair of elements have positive electron affinity values