Question

Carbon has six protons; therefore, its mass number is six.
a. true
b. false

Answer 1

B.) False

Step-by-step explanation:

The mass number is determined by adding the number of protons and neutrons in an element's nucleus. Since carbon has 6 protons and 6 neutrons, the mass number is 12.

The atomic number is determined by the number of protons in an element's nucleus. Since carbon has 6 protons, the atomic number is 6.