Question

Periodic table of elements an atom contains 11 protons and 12 neutrons, its atomic number will be_ and the mass number will be _.

a 1, 23
b 11, 23
c 12, 11
d 23, 11

Answer 1

Answer: the atomic number is eleven because the number of protons is equal to the number of electrons which is also equal to the atomic number.

The atomic mass is the protons+neutrons which after adding will give 23.

Step-by-step explanation: