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1.Electronic configuration of an element is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p5. Answer the following questions based on this information.
a) Explain how you can find out its position in the periodic table (group & period) from the electronic configuration, in two sentences.
b) What block element is it?
c) Write one property of this element.
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