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PERIODIC TRENDS, Ahmed Khalifa, Farida Khalifa, 10A - Coggle Diagram
PERIODIC TRENDS
Atomic Radius
It's half the distance from the center to center
of two like atoms that are bonded together
Increases down the group
Because the addition of a another level go electrons,
increases the size
Decreases across the period
Due to the increased nuclear charge
Ionization Energy
It's the energy required to remove an electron
Decreases down the group
The outermost electrons are farthest from the nucleus.
Increases across the period
The electrons are more strongly attracted to the nucleus
Electron Affinity
It's the energy change that occurs when a
neutral atom gains an electron.
Decreases down the group
Due to increasing effect of electron shielding.
increases across the period
Due to increasing nuclear charge
Electronegativity
It's the ability of an atom in a chemical
compound to attract electrons
Decreases down the group
Because the effective nuclear charge acting on the valence electrons is
the same although the size is different.
Increases across the period
Valence electrons are attracted more strongly.
Ahmed Khalifa
Farida Khalifa
10A