Interpretation:
The first of 55 elements that would be ordered differently than they are in the existing table needs to be determined, if the periodic table was arranged by
Concept introduction:
The arrangement of elements on the basis of
Answer to Problem 37A
Three pair of elements orders differently if arranged according to their masses.
Explanation of Solution
The present periodic table is arranged on the basis of atomic number. If the periodic table is arranged on the basis of atomic mass, potassium with atomic mass 39.09 is appeared before argon (39.95), nickel (58.69) would appear before cobalt (58.93) and iodine (126.90) would appear before tellurium (127.6).
If elements are arranged on the basis of atomic mass, potassium-argon, nickel-cobalt and iodine-tellurium arranged differently than the existing periodic table.
Chapter 6 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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