Based on information from the periodic table, which statement is true for the element gallium?
A. The atomic number of gallium is 69.7, and its atomic mass is 31.
B. A gallium atom contains 31 protons, and most gallium atoms
contain 39 neutrons.
C. A gallium atom contains 31 protons, and neutral gallium atoms
contain 39 electrons.
D. The atomic number of gallium is 31, and its average atomic mass
is 39.
ANSWER—————————

B. A gallium atom contains 31 protons, and most gallium atoms contain 39 neutrons