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অ্যাভোগেড্রোর সংখ্যা কি?

Md. Saifur Rahman

কোনো বস্তুর এক মোলে যত সংখ্যক অণু, পরমাণু বা আয়ন থাকে সেই সংখ্যাকে অ্যাভোগেড্রোর সংখ্যা বলে।

অ্যাভোগেড্রোর সংখ্যার মান হলো: 6.023×10²³

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