Question

What did scientists discover when they arranged elements in order of increasing atomic mass?

Answer 1

A repeating number of properties.

Answer 2

A.
a repeating pattern of properties







B.
a puzzling series of numbers







C.
alphabetical arrangement of the names of elements







D.
no patterns or relationships

Answer 3

change one word i said to fit into one of those options

Answer 4

therefore A. You could have looked at a Periodic Table.

Answer 5

thank you