On moving from Li to F in the second period, there would be a decrease in:

How does number of (i) valence electrons (ii) valency, vary on moving from left to right: in the second period of a periodic table ?

How does number of Valence electrons on moving from left to right In the second period of a periodic table

How does number of valency vary on moving from left to right In the second period of a periodic table

Moving left to right in the second period, number of valence electrons ……....... [increases from 1 to 4/ increases from 1 to 7]

On moving from left to right in a period in the periodic table, the size of the atom.

On moving from left to right in a period in the periodic table, the size of the atom.

On moving along the period , the atomic radii decreases

On moving along the period , the atomic radii decreases. Explain.

Assertion : The atomic radii of elements decrease on moving from left to Reason : On moving from left to right in a period, the ionisation enthalpies right in a period. increase with increase in atomic number.