rjlundgren Member Profile in The AnswerBank

rjlundgren

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Joined: 23:25 Mon 11th Sep 2006

Last Activity: 23:26 Mon 11th Sep 2006

Gender: Female

Status: User_Inactive

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rjlundgren

Periodic Table

what is the significance of the vertical columns and horizontal columns of the periodic table???? PLEASE SOMEONE ANSWER ME ASAP!!!!!!!

Only 1 question