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Does tendency gain electrons?

Joe Ford

Does tendency gain electrons?

Tendency to gain electrons increases as we go from left to right in a period because the effective nuclear charge increases and the atomic radius decreases.

How do you think the tendency to gain electrons will change in a group?

On moving down a group, the tendency to gain electrons (electronegativity) decreases as the atomic radius increases due to the increase in number of shells. This increases the distance between the nucleus and outermost shell. This results in decrease in effective nuclear charge.

How does the number of electron shell change as we go down the group?

(1) number of shells of elements while going down a group increases by 1. °. (2) The valence electrons increase in number as you go across a period. ° (4) atomic size while moving down a group increases due to increase in number of shell.

What is the trend of Valency while going down in a group?

Valency in the periodic table across a period first increases and then decreases. There is no change going down a group. However, this periodic trend is sparsely followed for heavier elements (elements with atomic number greater than 20), especially for lanthanide and actinide series.

Why do valence electrons increase from left to right?

The ionization energy of the elements within a period generally increases from left to right. This is due to valence shell stability. The ionization energy of the elements within a group generally decreases from top to bottom. This is due to electron shielding.

Do valence electrons increase down a group?

Across a period the valence electrons increases, while down a group they remain same.

How will the atomic radii will change as electrons are added to a shell?

The gain of an electron adds more electrons to the outermost shell which increases the radius because there are now more electrons further away from the nucleus and there are more electrons to pull towards the nucleus so the pull becomes slightly weaker than of the neutral atom and causes an increase in atomic radius.