Atoms, Periodic Table, and Bonding

Word Cloud

What words or phrases come to mind when you think of Chemistry?

Hotspot

Click on the image that represents an element AND a molecule

Draw

How many electrons does Carbon have?

Try drawing these on as upwards and downwards arrows on the image

Drag and Drop

The formula for Sodium Chloride would be

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The formula for Magnesium Chloride would be ​

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The formula for Aluminium Oxide would be ​

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Drag these tiles and drop them in the correct blank above

NaCl

MgCl2

Al2O3

MgCl

AlO

Mg2Cl

Al3O2

NaCl2

​

Draw

Number of moles (n) = mass (m) ÷ relative molecular mass (Mr)

Example: You have 22g of sodium chloride (NaCl).

How many moles do you have?

Show your working!

Key info: Atomic weight of Sodium is 23,

Atomic weight of Chlorine is 35.5

Open Ended

Can you write one sentance of what you already know about bonding in Chemistry?

Open Ended

Ok, so let's put this together with our previous lesson about reactions. Who can balance this equation:

Calcium chloride + Trisodium phosphate –> calcium phosphate + sodium chloride

Remember, you need the same number of atoms of each element on left and right

CaCl₂ + Na₃PO₄ → Ca₃(PO₄)₂ + NaCl

Poll

How do you feel about your understanding of this week's lectures?

• 1 - I didn't know any of this

• 2 - I knew only a bit of this, I will have to do some catch up reading!

• 3 - I was confident about some aspects, didn't know others

• 4 - I knew most of this, but was glad of a refresher

• 5 - I knew all of this before! Stop patronising me!