2007-10-16 10:37:54 · 4 answers · asked by desiree d 1 in Science & Mathematics ➔ Chemistry
Mandeleev arranged it so that the atomic masses would be increasing, but scientist have rearrange it. They are divided into groups and periods and are surrounded by other elements that have the same characteristics.
2007-10-17 15:07:24 · answer #1 · answered by I ♥ Switchfoot MORE!!! 3 · 0⤊ 0⤋
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2016-05-22 23:52:03 · answer #2 · answered by Anonymous · 0⤊ 0⤋
as you read from left to right, top to bottom (as you would a book) atomic masses increase.
2007-10-16 10:41:51 · answer #3 · answered by menacing_platypus 3 · 0⤊ 0⤋
It goes up at double (at first), and then slightly more than double, the rate of the proton number.
2007-10-16 10:42:08 · answer #4 · answered by Gervald F 7 · 0⤊ 0⤋