Question

7
elements on the periodic table are organized in order of their
a. electronegativities.
b. atomic numbers.
c. phases of matter.
d. atomic masses.
reset submit

Explanation:

The modern periodic table is organized by increasing atomic number (number of protons in the nucleus), which gives a consistent periodic repetition of chemical properties. Earlier versions used atomic mass, but atomic number is the correct organizing principle now.

Answer:

B. atomic numbers.