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2위@nishikantasantra418951 minutes ago
Khub sundor class ma'am 😊번역 보기
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3위@Art_Craft8366 minutes ago
Pdf app a dile khub upokrito hotam atleast xm er ei kodin번역 보기
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1위@knowledgeaccount11 hour ago
Qno 46 : B ( right ) প্রোটন সংখ্যা = ভরসংখ্যা (২৭) - নিউট্রন সংখ্যা (১৪) = ১৩। নিরপেক্ষ পরমাণুতে ইলেকট্রন:১৩ আয়নে ইলেকট্রন সংখ্যা: আয়নে ৩টি ধনাত্মক চার্জ (+৩) থাকার অর্থ হলো পরমাণুটি ৩টি ইলেকট্রন হারিয়েছে। অতএব, আয়নটিতে ইলেকট্রন সংখ্যা = ১৩ - ৩ = ১০번역 보기
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