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You would expect to find zinc in the transitions metal and calcium on the far left where metals are located.
Zinc and Calcium form compound by losing electrons which are in their outermost shell. By doing so, they form positive ions. Both of them have 2 electrons in their outermost levels.
Calcium should be found in group 2 and Zinc in the group 10 of the periodic table. This has been predicted using the number of electrons in the last two shells of Ca which is 8, 2 resp. and is 18, 2, respectively for Zn.
Elements with 2 electrons in the outermost shell and 8 electrons in the shell before that should have properties similar to Ca. Similarly elements with 18 electrons in the shell before the outermost and 2 electrons in the outermost shell should have the properties of Zn.
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