Question

explain the trends (along the period, down the group) in modern periodic table for the properties (a) Electron affinity (b) Electronegativity​

Answer 1

Explanation:

a)Electron affinity

→Electron affinity generally decreases down a group of elements because each atom is larger than the atom above it (this is the atomic radius trend, discussed below). Therefore, electron affinity decreases. Moving from left to right across a period, atoms become smaller as the forces of attraction become stronger.

b)Electronegativity

→On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.

Answer 2

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