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☆☆☆☆☆All elements have same number of valence electrons (two) and hence they have similar reactivity and chemical properties.
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The elements in same group have similar chemical properties
A dry cell; it contains chemical energy.
A dry cell; it contains chemical energy.
A dry cell; it contains chemical energy.
A dry cell; it contains chemical energy.
Modern periodic table is invented by Henry Moseley.
no dipole moment
Ionization energy decrease down the group.So in halogens,Fluorine has highest 1st ionization energy.
The trend for first ionization energy
Phosphorus triiodide is a nonpolar molecule.
Generally, any element with a lower atomic number.
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