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From previous lessons, I know that column 1 are alkali metals, column 2 are alkaline earth metals, column 3 till column 12 are transition metals, column 17 are halogens and column 18 are inert gases. But till now I don't know the properties of elements in columns 13, 14, 15 and 16... Are they metals or non-metals? I have not faced such a question before.

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closed as unclear what you're asking by M.A.R., Todd Minehardt, bon, Jan, Loong Nov 1 '15 at 18:47

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ Are you asking for the common names of the groups e.g. Group 1 is commonly called "alkali metals", or are you asking for their physical properties i.e. whether they are metals, metalloids, or non-metals? To be honest, you can just look at the individual Wikipedia pages of the groups, or the elements to easily find your answer. The trend is that there is a general increase in metallic character going down the groups. So carbon is a non-metal, silicon and germanium are metalloids, tin and lead are metals. $\endgroup$ – orthocresol Oct 31 '15 at 22:44

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