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Metals and Non-metals
Question
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Explain, how can we find out whether a given substance is a metal if we know its electronic configuration.

Answer

we have the electronic configuration of a substance, we can say whether it is a metal or not. Metals have 1 to 3 electrons in the outermost shell of their atoms.

Sodium, magnesium and aluminium are metals, as these contain 1, 2, 3 electrons respectively in their outermost shells. Their atomic numbers and electronic configurations are as given below:

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Some More Questions From Metals and Non-metals Chapter

Why are metals good conductors of heat and electricity?

Why do metals possess lustre?

Why are metals generally ductile and malleable?

What is meant by hardness of a substance? Name some metals which are hard.

Explain, how can we find out whether a given substance is a metal if we know its electronic configuration.

Demonstrate why some metals are used for making cooking vessels?

Illustrate that metals are good conductors of electricity. Which metals are used for this purpose?

Aluminium or copper wire required for electric circuits are coated with a rubber—like material. Why?

Why is it not possible to group metals and non-metals on the basis of their physical properties? Explain.