IES Maestro Haedo. Author: teacher. Ángel Viñas San Narciso. Department of Physics and Chemistry 8. 9. 10. 11. Define monoatomic ion: monoatomic ionic element formed by isolated ions, all of them charged atoms of the same type. If they have a positive...
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IES Maestro Haedo. Author: teacher. Ángel Viñas San Narciso. Department of Physics and Chemistry 8. 9. 10. 11. Define monoatomic ion: monoatomic ionic element formed by isolated ions, all of them charged atoms of the same type. If they have a positive charge are cations. If they have a negative charge are anions. E.g. sodium (1+) and oxygen (2-). 12. Complete the following table about the elements, like in the example in the first row: Simple Type of Form Z A Nº Nº Nº Meaning Substance simple ula/ of of of (element) substance Sym pro neut elec bol ton rons tron s s Sodium Monoatomic Na+ 11 22 11 11 10 Cation is formed by one atom of cation cation sodium with one positive charge Nitrogen Monoatomic N- 7 14 7 7 8 Anion = 1 N atom with negative anion anion charge Iron cation Monoatomic Fe2+ 26 52 26 26 24 Cation = 1 Fe atom with 2 positive cation charges Iron Metallic Fe 26 52 26 26 26 Crystal = lots of atoms of iron in a crystal 3D structure Oxygen Molecular O2 8 17 8 9 8 Molecule is for
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