The periodic table is organized by a) atomic mass. b) atomic size. c) atomic number. d) atomic periodicity.

The correct option is: c) atomic number

Explanation:

The periodic table is a table in which all the chemical elements are organized in the increasing order of atomic number (Z), which is unique for each chemical element.

The atomic number of a neutral element is equal to the number of protons present in the nucleus of the atom and the number of electrons in the atom.

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.