Fill in the blanks. 1. Totally there are _____ elements. 2. _____ scientist tried to name various elements based on pictorial symbols. 3. The modified version of _____ system follows under the heading 'system for Determining symbols of the Elements '. 4. The symbol of Iodine is _____. 5. The symbol of bromine is ______. 6. The symbol of cadmium _____. 7. The Latin word of Sodium is _____ 8. The symbol of mercury is _____. 9. For elements having two letter symbols the first letter should be in _____. 10. Metals are _____ conductors of heat and electricity.
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Displacement reactions occur when a metal from the electrochemical series is mixed with the ions of a metal lower down in the electrochemical series. The atoms of the more reactive metal push their electrons on to ions of the less reactive metal.
Adoption is a process whereby a person assumes the parenting of another, usually a child, from that person's biological or legal parent or parents. Legal adoptions permanently transfer all rights and responsibilities, along with filiation, from the biological parents to the adoptive parents.
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sorry I can't write this big questions answers
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