Based on this cell from the periodic table C. The atomic number of magnesium is 24.3, and its atomic mass is 12 is true
What is atomic and mass number ?
Upper part represents mass number which is sum of protons and neutrons
Lower part represents atomic number which is number of electron
number of electrons are equal in number of protons for a neutral atom and
from image it can be concluded that correct answer will be
C. The atomic number of magnesium is 24.3, and its atomic mass is
12
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