Question

How do we find whether a given element is a non metal, if we know its electronic configuration? (b) With the help of a reaction show that zinc is more reactive than iron..​

Answer 1

Answer:

At first write the electronic configuration of an element. From atomic number 1 to 20 the element with 1-2 electrons in outermost shell is metal. Element with 3-4 electrons may be metal non-metal or metalloid. But the elements with 5-7 electrons in outer most shell is essentially non-metal.

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Answer 2

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At first write the electronic configuration of an element. From atomic number 1 to 20 the element with 1-2 electrons in outermost shell is metal. Element with 3-4 electrons may be metal non-metal or metalloid. But the elements with 5-7 electrons in outer most shell is essentially non-metal.