Apr 22, 2020
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seen from China
seen from Switzerland
seen from Hong Kong SAR China
seen from Türkiye
seen from United States
seen from United States
seen from Singapore
seen from China
seen from United States
seen from United States
seen from Switzerland
seen from India
seen from China
seen from Malaysia
seen from China
seen from Iraq
seen from France
seen from China
seen from United States
seen from Hong Kong SAR China
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d block and f block element placed at a position in periodic table depend upon its valence shell configuration.The d block elements are placed in 3-12 group