Period mein atomic size ghatta hai kyunki nucleus ka pull badh jaata hai, aur group neeche badhta hai kyunki nayi shells add hoti hain. Isse valency group mein same rehti hai, aur metallic character period ke saath kam hota jaata hai. Par mere hisaab se, jaise meri purani sewing machine ke chakkar mein mera patience bhi period ki tarah ghatta jaata hai, par jab bhaiya ke education fund mein paisa jata hai, toh dil group ke atoms ki tarah phail sa jaata hai.
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