Q. Shielding effect is responsible for decrease in force of attraction of nucleus for electrons present in the

View solution

Q. From left to right in a period, shielding effect remains

View solution

Q. Electro negativity values of elements is calculated by

View solution

Q. Probability distribution of electrons can be affected by

View solution

Q. Electro negativity of sodium atom is

View solution

Q. After conversion of Na+ ion radius of Na atom reduces from

View solution

Q. Electron has

View solution

Q. bond formed by elements of widely different electro negativities is

View solution

Q. Cationic radius decreases when effective nuclear charge on ion

View solution

Q. In comparison of electronegativity values increase in a period with decrease in (structure O)

View solution

Q. Amount of energy which is evolved in bind formation is

View solution

Q. After loss an electron potassium attains configuration of

View solution

Q. Electropositive elements are at a higher energy state then the

View solution

Q. Electron affinity of potassium atom is

View solution

Q. First ionization energy oxygen of is

View solution

Q. Ionization energies is influenced by shielding effect of

View solution

Q. In which period decrease of atomic radii is very prominent?

View solution

Q. Number of electrons in valence shell of first element of period is

View solution

Q. From top to bottom in a group of periodic table atomic radii

View solution

Q. In a group of periodic table, nuclear charge

View solution