11. Writing symbol and Group number (Clue: there are 18 groups in the Periodic Table of Elements) Name Symbol Group Number 1. Boron 2. Fluorine 3. Manganese 4. Cobalt 5. Tin
11. Writing symbol and Group number (Clue: there are 18 groups in the Periodic Table of Elements) Name Symbol Group Number 1. Boron 2. Fluorine 3. Manganese 4. Cobalt 5. Tin
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11. Writing symbol and Group number (Clue: there are 18 groups in the Periodic Table of Elements) Name Symbol Group Number 1. Boron 2. Fluorine 3. Manganese 4. Cobalt 5. Tin