The symbol for a radioactive nuclide is 131/56ba which statement is correct? a) the atomic number of the radioactive nuclide is 75.b) the mass number of the radioactive nuclide is 131.c) the number of neutrons that are present in the nucleus of each atom is 56.d) the number of protons that are present in the nucleus of each atom is 131.

Examine the false statement. compounds are the smallest unit of an element that occur most commonly in nature. select the rewording of the statement that is true. a: atoms are the smallest unit of an element that commonly occur in nature. b: molecules are the smallest unit of an element or compound that commonly occur in nature. c: molecules are the smallest unit of a compound that occur on the periodic table. d: compounds are the smallest unit of an element that occur on the periodic table