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The atomic number of sodium is 11. This number represents the number of protons in the nucleus of a sodium atom.
The atomic mass of an element can be calculated by adding the number of protons and neutrons in the nucleus. For example, for sodium, with an atomic number of 11, the atomic mass is approximately 23.
The atomic number is significant because it defines the identity of an element. It determines the number of protons in the atom and thus its position in the periodic table.
The atomic mass of magnesium is approximately 24. This is calculated by taking the atomic number of 12 and doubling it, then adjusting for the difference.
The atomic number of aluminum is 13. This indicates that aluminum has 13 protons in its nucleus.
The atomic number is the number of protons in an atom, while the atomic mass is the total number of protons and neutrons. Atomic mass is usually a decimal value due to the presence of isotopes.
The atomic number of potassium is 19. This means it has 19 protons in its nucleus.
The Latin name for sodium is 'Natrium'. This is where the symbol 'Na' comes from.
The atomic number of iron is 26. This indicates that iron has 26 protons in its nucleus.
The atomic number of copper is 29. This means it has 29 protons in its nucleus.
The atomic number of zinc is 30. This indicates that zinc has 30 protons in its nucleus.
The atomic number of chromium is 24. This means it has 24 protons in its nucleus.
The atomic number of manganese is 25. This indicates that manganese has 25 protons in its nucleus.
The atomic number of nickel is 28. This means it has 28 protons in its nucleus.
The atomic number of neon is 10. This indicates that neon has 10 protons in its nucleus.
The atomic number of fluorine is 9. This means it has 9 protons in its nucleus.
The atomic number of hydrogen is 1. This indicates that hydrogen has 1 proton in its nucleus.
The atomic number of carbon is 6. This means it has 6 protons in its nucleus.
The atomic number of oxygen is 8. This indicates that oxygen has 8 protons in its nucleus.
The atomic number of nitrogen is 7. This means it has 7 protons in its nucleus.
The atomic number of sulfur is 16. This indicates that sulfur has 16 protons in its nucleus.