Hafnium

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name Hafnium latin Hafnium french Hafnium german Hafnium symbol Hf proton number 72 atomic weight 178.49 Pauling electronegativity 1.3 electronic configuration [Xe] 4f145d26s2 >> show long melting point 2506 K, 2233°C, 4051°F boiling point 4876 K, 4603°C, 8317°F group 4 period 6 state (by 20°C) solid oxidation states +4

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