GDixon07 GDixon07

15-12-2020
Chemistry

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

A) 18

B) 5

C) 13

D) 8

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bhreeeya bhreeeya

15-12-2020

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.

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