Wednesday, January 20, 2016

20 January 2016

Admin
Homework:
  Complete the Consent form for the withdrawal of funds from the Edusave Account by [ Thursday 21 January 2016 ]

What we discussed in class: 
Discussed on the class decoration.

Chinese
Homework:
  Complete the comprehension by [ Thursday 21 January 2016 ]

What we discussed in class: 
Discussed some questions of the comprehension.

Math
Homework:
  Complete homework 6 by [ Thursday 21 January 2016 ]

What we discussed in class: 
Talked about standard deviation.

History
Homework:
  Complete the presentation on your given topic by [ Tuesday 26 January 2016 ]

What we discussed in class:
Had time to do the presentation

English
Homework:
  Complete 'Super Size Me' assignment by [ Friday 22 January 2016 ]

What we discussed in class:
Discussed the questions 6-10 of the comprehension

Chemistry
Homework:
  There's a see-think-wonder template, copy the contents and paste it into the learning log(put it under the 'Periodic Trends, Noble Gases and Transition Metals'). Afterwards complete the template by [ Friday 22 January 2016 ]

What we discussed in class: 
Chemistry Quiz [ Next week ]
Group 1 elements - Alkali metals
Group 7 elements - Halogens

A group is a vertical column of elements.
A period is a horizontal row of elements.

Across a period
-Same number of electron shells
-Proton number increases
-Decrease in metallic properties(Ease of removing electrons)
Down a group
-Number of electrons shell increase
-Same number of valence electrons
-Increase in metallic properties(Ease of removing electrons)

The group number describes the number of valence electrons of elements. This in turn determines if atoms of elements need to lose or gain electrons to achieve stable electronic configurations, hence affecting the charges of ions formed.

Noble gases
-Unreactive - They have full electronic structures that are stable. Noble gases do not lose, gain, or share electrons
-Have low melting and boiling points - Exist as colourless gases at room temperature
-Are insoluble in water

Example of noble gases:
Helium(2) - Fill weather balloons and airships
Neon(2,8) - Advertising lights
Argon(2,8,8) - Used to fill light bulbs

Transition elements
-Also called Transition metals
-Good conductors of heat and electricity
-High melting points
-High density
-Malleable
-Ductile

Transition metals have higher melting and boiling points, as well as density, than metals of other groups.

Unlike metals in other groups, transition metals have oxidation states.
Elements like Na and Mg form ions with a fixed oxidation state.
Eg. Cu+, Cu2+
Transition metals form coloured compounds.
Transition metals and their compounds are catalysts.

O I Loss of electrons ( Oxidation )
R I Gain of electrons ( Reduction )

Diatomic gases
(I2)I
(H2)Have
(N2)No
(Cl2)Clever
(O2)Or
(Br2)Brilliant
(F2)Friends


Past stuff
  Complete the Reading Programme assignment by [ Friday 23 January 2016 ]
  Complete page 4 of the Nervous system worksheet by [ Thursday 21 January 2016 ]
  Search up and complete the homework on the Plant Biotechnology Notes by [ Tuesday 26 January 2016 ]
  Complete notes pg 35-37 Q5-9 by [ Monday 25 January 2016 ]

If there is something that I missed or if there is a mistake that I had made, please feel free to inform me on the Facebook/Whatsapp group or private message me.

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