আধুনিক পর্যায় সারণীতে ক্ষার ধাতুকে কোন শ্রেণীতে রাখা করা হয়েছে?

This question was previously asked in
RRB ALP Previous Paper 19 (Held On: 30 Aug 2018 Shift 1)
View all RRB ALP Papers >
  1. দ্বিতীয় শ্রেণী
  2. অষ্টাদশ শ্রেণী
  3. তৃতীয় শ্রেণী
  4. প্রথম শ্রেণী

Answer (Detailed Solution Below)

Option 4 : প্রথম শ্রেণী
Free
General Science for All Railway Exams Mock Test
20 Qs. 20 Marks 15 Mins

Detailed Solution

Download Solution PDF
  • পর্যায় সারণির শ্রেণী 1 মৌলগুলি ক্ষার ধাতু হিসাবে পরিচিত
  • তাদের ns1 বাহ্যিকতম বিন্যাস আছে এবং S-ব্লক মৌলের অন্তর্গত।
  • শক্তিশালী আয়নিক বন্ধন গঠনের জন্য বাহ্যিকতম কক্ষে তাদের যোজ্য়তা ইলেকট্রন দান করার প্রবণতাও রয়েছে।
  • এতে লিথিয়াম (Li) থেকে ফ্রান্সিয়াম (Fr) পর্যন্ত মৌল রয়েছে।
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