Question

why the No.of valence electrons increases across the period

Answer 1

Explanation:

bcs atomic no.increases

therefore,protons increase

therefore electrons also increases to neutralize the atom

Answer 2

Answer:

Going across a period (from left to right), the number of protons increases and therefore the nuclear charge increases. (Going across a period, the number of electron energy levels remains the same but the number of electrons increases within these energy levels

Explanation:

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