How does the number of valence electrons change down a group?
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Valence shell electrons remain same down the group.
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As a result, it is easier for valence shell electrons to ionize, and thus the ionization energy decreases down a group. Electronshielding is also known as screening. The ionization energy of the elements within a period generally increases from left to right. ... This is due to electron shielding.
As a result, it is easier for valence shell electrons to ionize, and thus the ionization energy decreases down a group. Electronshielding is also known as screening. The ionization energy of the elements within a period generally increases from left to right. ... This is due to electron shielding.
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