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Anna71 [15]
3 years ago
5

Please help asap!! How many groups did Mendeleev's original Periodic Table of Elements have?

Chemistry
1 answer:
devlian [24]3 years ago
8 0
The columns, called groups, contain elements with similar chemical behaviours. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are the halogens; and group 18 are the noble gases.




Hope this helps :)
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