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zimovet [89]
3 years ago
9

Look at the periodic table in Appendix 1. Name two elements that do not appear in order of their relative atomic masses.

Chemistry
1 answer:
e-lub [12.9K]3 years ago
8 0

iodine which should appear before tellurium and argon which should appear after potassium

There is a 3rd one: nickel should appear before cobalt

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