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사용자:Acu/연습장(r5 Blame)

r5
r2
Acu
1[include(틀:주기율표)]
r5
Acu
2[include(틀:원소 정보, name_ko=아스타틴, name_ch=, name_en=Astatine, number=85, symbol=At, category=준금속, state=고체, weight=209.9871, density=약 7g/cm³, melt=302 °C, boil=337 °C, fusion=약 6 kJ/mol, vapor=약 54 kJ/mol, valence=7, ion=약 899 kJ/mol, negativity=2.2, affinity=약 233 kJ/mol, found=E. Ségre\, D. R. Corson\, K. R. MacKenzie, found_link=, found_link_alt=, found_year=1940, CAS=7440-68-8, prev=폴로늄, prev_alt=폴로늄, prev_symbol=(Po), next=라돈, next_alt=라돈, next_symbol=(Rn))]