ram3130 ram3130

22-11-2021
Chemistry

contestada

why the table perdioc has 3 columns in its group 8 ,
i need reference about that please

Respuesta :

kittybunny119 kittybunny119

22-11-2021

Answer: It just haven’t been discovered yet

Explanation:

Because the periodic table was discovered long ago some elements haven’t been discovered thats why it maybe has 3 columns

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