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Trends in Groups and Periods (Electronegativity (Electronegativity of an…
Trends in Groups and Periods
Electronegativity
Electronegativity of an element decrease as you go down a group
While going across a period (form left-to-right) Electronegativity of an element increases
Ionization Energy
Ionization energy decrease while going down a group
Ionization energy increases going across a period
Atomic Radius
Atomic radius increase going down a group
Atomic Radius decrease moving across a period
Atomic Size
While going down a group atomic size increases
Atomic size decrease moving across a period
Ionic Size
Ionic size increases going down a group
Ionic size decreases while moving across a period
Atomic Mass
Atomic mas increases both while going down a group and moving across a period
Ionic Radius
While going down a group ionic radius increases
Ionic radius decrease while moving across a period
Reactivity of Metals
Reactivity of metals increases going down a group
While going across a period the reactivity of metals decreases
Melting Point
Melting point of metals decrease while going down a group, however it increases for non-metals
Melting point increases until group 6 and then it decreases while moving across a period
Boiling Point
Boiling point of metals decreases while going down a group, however it increases for non-metals
Boiling point increases until group 5 and then it decreases while moving across a period
Metallic Character
Metallic character of elements increase while going down a group
Metallic character of element decreases
while going across a period
Lattice Energy
Lattice energy decreases while going down a group
Lattice energy increase while going across a period
Reactivity of Non-Metals
Reactivity of non-metals decreases while going down a group
Reactivity of non-metals increases while going across a period
Density
Density increases while going down a group
Density decreases while moving across a period