Question

question 12 of 25
how are elements arranged on the periodic table?
a. by increasing electronegativity
b. by increasing atomic mass
c. by increasing atomic number
d. by increasing atomic radii

Explanation:

The modern periodic table arranges elements in order of increasing atomic number, which is the number of protons in the nucleus of an atom of the element. This arrangement leads to the periodic recurrence of chemical and physical properties.

Answer:

C. By increasing atomic number