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Listen to the song! Write down as many words as you hear!
Prize for winner!
understand that ions are charged atoms and they like to form IONIC BONDS (only between a metal & non-metal)
understand that ions are charged atoms and they like to form IONIC BONDS (only between a metal & non-metal)
KEYWORDS: ions, ionic bond, octet rule, lattice, transfer, cation, anion
Elements find happiness by looking for a mate (ie: another element)that will help fill their valence shell so it has 8 electrons.
Eight electrons in their outer shell = happy elements 😃😃😃😃
This makes them stable. This is called the octet rule.
When a metal atom transfers electron(s) to a non-metal atom, the atoms now have a charge (as they have either lost or gained an electron).
A charged atom is called an ion.
These ions may be positively charged (lost an electron)or negatively charged (gained an electron). Together, they form an ionic bond, which makes them become an ionic compound.
This vid below is a FANTASTIC summary of ions and ionic bonding..
watch this and you will know all! 🙌🏼
LET'S TALK ABOUT 'THE NAME CHANGE'..
Your turn to convert non-metals into their 'ion' name..
Follow the example above - chlorine becomes chloriDe.
Bromine....
Iodine....
Fluorine....
This change happens when the metal and non-metal 'marry up'.
Just like in the olden days when the bride changed her name..👰🏼♂️
DRAW THIS DIAGRAM IN YOUR WORKBOOKS TO ILLUSTRATE A PERFECT SUMMARY!
CHALLENGE!
CHALLENGE!
🤔 Exception to the octet rule is H, He, Li, Be... WHY?
🤔 Exception to the octet rule is H, He, Li, Be... WHY?
🤔
🤔
Discuss with your classmate and write it up in your book!
On this periodic table you can see which groups like to donate electrons
and which like to receive electrons.
👇🏼DONATE DONATE DONATE RECEIVE RECEIVE👇🏼
If an atom transfers an electron it becomes a CATION, a +ve charged ion
If an atom receives an electron it becomes an ANION, a -ve charged ion
12 - Ion formation and the periodic table.pptxDescribe what is happening in the image below.
Use keywords like..
elements, metal, non-metal, ionic bond, sharing,
octet rule, stability
note the charge in the green nucleus after the
electron transfer.
CHEM 9.27 - sad elements to happy elements.docxWatch how Sodium (Na) ionically bonds with Fluorine (F)
It now becomes a Na+ ion and a F- ion
Sodium + Fluorine --------> Sodium Fluoride
TO SHOW THAT THE ATOM IS NOW AN ION WE ADD LARGE SQUARE BRACKETS AND A CHARGE.
So how do atoms achieve a full valence (outer) shell?
Check out the images below to learn how!
Have a play of dragging and dropping elements on the periodic table to make compounds on this website:
Th
Add Magnesium with Oxygen and you will get ???
Have a go in the lab! Just don't look too closely 😳
Let's have a go and making atoms into ions!
Use the liveworksheet below
Year 9 - Ionic Bonding Puzzle.pdf
CHEM 9.28 - Forming Ions.docxCHALLENGE! Have a go at these worksheets to extend yourself to a chemistry high!
Extra resources!
12 - Ion formation and the periodic table.pptx11 - Writing chemical equations.pptx12 - Identify the ion that will be formed by the following elements.docx12 - Forming ions.docxPage updated
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