Isotopes: Exercise with solutions

Questions

Magnesium (Mg) has 3 isotopes with mass numbers 24, 25, and 26.
  1. Write the complete chemical symbol for each of them.
  2. How many neutrons are in a nuclide of each isotope?

Solution:

Atomic Weight
Symbol12Mg2412Mg2512Mg26
# Protons121212
# Neutrons121314
# Electrons121212



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