Is the following statement true or false? The mass of a proton is twice the mass of a neutron.

The atomic number can be used to determine which of the following?

Indicate whether the following statement is true or false: The atomic number of an atom is equal to the sum of the number of protons and the number of neutrons present in its nucleus.

Determine the number of protons and electrons present in a neutral atom of xenon.

Identify the element that "X" represents in ⁷²₃₂X.