Oxygen’s atomic number is 8. this means that an oxygen atom has
a. eight neutrons in its nucleus.
c. eight protons in its nucleus.
b. a total of eight protons and neutrons.
d. a total of eight neutrons and electrons.

The correct choice is

c. eight protons in its nucleus.

we know that the atomic number of an element determines the number of electrons and number of protons in the nucleus of atom of the element. In an element, the number of electrons and number of protons are equal and is same as the atomic number of the element.

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