Using Bohr Diagrams to Show the Formation of Ionic Compounds.

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Presentation transcript:

Using Bohr Diagrams to Show the Formation of Ionic Compounds

Metals Non- Metals

Metals Non- Metals

Metals Non- Metals Charge on the most commom ion of this element

Metals Non- Metals

Metals Non- Metals

Metals Non- Metals Metal + Non-metal  Ionic Compound

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Valence e –

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Valence e – I want to lose these 2 valence electrons!

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n I want to gain one electron here!

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = +12

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = electrons

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = electrons = –10

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = electrons = –10 Net charge =

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = electrons = –10 Net charge = +2

12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Net charge = +2

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Net charge = +2

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Net charge = +2

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Net charge = +2

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = +9

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = electrons

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = electrons = –10

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = electrons = –10 Net charge =

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = electrons = –10 Net charge = –1

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = electrons = –10 Net charge = –1

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Ion 9 p 10 n 2+ 9 protons = electrons = –10 Net charge = –1

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Ion 9 p 10 n 2+ Net charge = –1

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ Net charge = –1

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ Net charge = –1

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ Net charge = –1

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ Net charge = –1

12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ –

12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluorine Atom 9 p 10 n This e – was added to this fluorine atom from the magnesium atom

12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluoride Ion 9 p 10 n –

12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluoride Ion 9 p 10 n –

12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluoride Ion 9 p 10 n – Bohr Diagram of Magnesium Fluoride

12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluoride Ion 9 p 10 n – Bohr Diagram of Magnesium Fluoride

We’ll do one more example.

We’re asked to draw a Bohr Diagram for the compound calcium oxide.

20 p 20 n A neutral Ca atom Valence e –

20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom Valence e –

20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom Unpaired e –

20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom Unpaired e – I need to gain 2 electrons! I need to gain 2 electrons at these locations!

20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom Unpaired e – I need to gain 2 electrons! I need to gain 2 electrons at these locations!

20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom I need to gain 2 electrons! I need to lose these 2 valence electrons!

20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n

20 p 20 n 8 p 8 n A Ca 2+ ion with 20 protons and 18 electrons 2+

20 p 20 n 8 p 8 n 2+ A Ca 2+ ion with 20 protons and 18 electrons An O 2– ion with 8 protons and 10 electrons 2–

20 p 20 n 8 p 8 n 2+ A Ca 2+ ion with 20 protons and 18 electrons An O 2– ion with 8 protons and 10 electrons 2– Electron arrangement of Argon

20 p 20 n 8 p 8 n 2+ A Ca 2+ ion with 20 protons and 18 electrons An O 2– ion with 8 protons and 10 electrons 2– Electron arrangement of Argon Electron arrangement of Neon

20 p 20 n 8 p 8 n 2+ A Ca 2+ ion with 20 protons and 18 electrons An O 2– ion with 8 protons and 10 electrons 2– Electron arrangement of Argon & a stable octet Electron arrangement of Neon and a stable octet

20 p 20 n 8 p 8 n 2+ 2– Bohr Diagram for Calcium Oxide