MSJChem - Tutorial videos for IB Chemistry
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    • Topic 1 Stoichiometric relationships
    • Topic 2 Atomic structure
    • Topic 3 Periodicity
    • Topic 4 Bonding
    • Topic 5 Energetics
    • Topic 6 Kinetics
    • Topic 7 Equilibrium
    • Topic 8 Acids and bases
    • Topic 9 Oxidation and reduction
    • Topic 10 Organic chemistry
    • Topic 11 Measurement and data processing
  • HL Syllabus
    • Topic 12 Atomic structure HL
    • Topic 13 Periodicity HL
    • Topic 14 Bonding HL
    • Topic 15 Energetics HL
    • Topic 16 Kinetics HL
    • Topic 17 Equilibrium HL
    • Topic 18 Acids and bases HL
    • Topic 19 Redox HL
    • Topic 20 Organic chemistry HL
    • Topic 21 Measurement and data processing
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Topic 3 Periodicity 

3.1 Groups and periods, metals and non-metals (introduction to the periodic table)
Understandings:
The periodic table consists of groups (vertical columns) and periods (horizontal rows).
The periodic table shows the positions of metals, non-metals and metalloids.
The period number (n) is the outer energy level that is occupied by electrons.
The number of the principal energy level and the number of the valence electrons in an atom can be deduced from its position on the periodic table.

new_syllabus_the_periodic_table.pdf
File Size: 409 kb
File Type: pdf
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3.1 Properties of metals and non-metals
This video covers the physical and chemical properties of the metals and non-metals.

3.1 The metalloids 
This video covers the physical and chemical properties of the metalloids.

 3.1 Electron configurations and the periodic table
Understandings:
The periodic table is arranged into four blocks associated with the four sub- levels--s, p, d, and f.
Applications and skills:
Deduction of the electron configuration of an atom from the element’s position on the periodic table, and vice versa.



electronic_configurations_and_the_periodic_table.pdf
File Size: 414 kb
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3.2 Electron shielding and effective nuclear charge 
This video covers the trends in electron shielding and effective nuclear charge in the periodic table.

3.2 Trends in atomic radii
Understandings:
Vertical and horizontal trends in the periodic table exist for atomic radius, ionic radius, ionization energy, electron affinity and electronegativity.
trends_in_atomic_and_ionic_radius.pdf
File Size: 423 kb
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3.2 Trends in ionic radii
Understandings:
Vertical and horizontal trends in the periodic table exist for atomic radius, ionic radius, ionization energy, electron affinity and electronegativity.

3.2 Trends in ionisation energy
Trends in ionisation energy worksheet
Understandings:
Vertical and horizontal trends in the periodic table exist for atomic radius, ionic radius, ionization energy, electron affinity and electronegativity.

Guidance:
For ionization energy the discontinuities in the increase across a period should be covered.

Guidance:
For ionization energy the discontinuities in the increase across a period should be covered.
This video covers the exceptions to the trend in ionisation energy across a period. 

3.2 Trends in electronegativity 
Understandings:
Vertical and horizontal trends in the periodic table exist for atomic radius, ionic radius, ionization energy, electron affinity and electronegativity.
topic_3_trends_in_electronegativity_and_electron_affinity.pdf
File Size: 184 kb
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3.2 Trends in metallic character 
Understandings:
Trends in metallic and non-metallic behaviour are due to the trends above.
Applications and skills:
​Pr
ediction and explanation of the metallic and non-metallic behaviour of an element based on its position in the periodic table.

3.2 Trends in electron affinity 
Understandings:
V
ertical and horizontal trends in the periodic table exist for atomic radius, ionic radius, ionization energy, electron affinity and electronegativity.

3.2 Trends in melting points
This video covers the trend in melting point across  periods 2 and 3 in the periodic table. 

topic_3_trends_in_melting_point.pdf
File Size: 115 kb
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3.2 Group 1 elements - the alkali metals 
Applications and skills:
Discussion of the similarities and differences in the properties of elements in the same group, with reference to alkali metals (group 1) and halogens (group 17).
A note about Francium - it is a radioactive element with a very short half-life. More information can be found here.
topic_3_group_1_alkali_metals.pdf
File Size: 146 kb
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3.2 Group 17 elements - the halogens
Applications and skills:
Discussion of the similarities and differences in the properties of elements in the same group, with reference to alkali metals (group 1) and halogens (group 17).


topic_3_group_17_elements.pdf
File Size: 135 kb
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3.2 Bonding and acid-base properties of the period 3 oxides
Understandings:
Oxides change from basic through amphoteric to acidic across a period.
Applications and skills:
Construction of equations to explain the pH changes for reactions of Na2O, MgO, P4O10, and the oxides of nitrogen and sulfur with water.
topic_3_bonding_of_the_period_3_oxides.pdf
File Size: 135 kb
File Type: pdf
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  • Home
    • About
    • Blog
    • Online tutoring
    • Privacy policy
  • Member's Area
  • SL Syllabus
    • Topic 1 Stoichiometric relationships
    • Topic 2 Atomic structure
    • Topic 3 Periodicity
    • Topic 4 Bonding
    • Topic 5 Energetics
    • Topic 6 Kinetics
    • Topic 7 Equilibrium
    • Topic 8 Acids and bases
    • Topic 9 Oxidation and reduction
    • Topic 10 Organic chemistry
    • Topic 11 Measurement and data processing
  • HL Syllabus
    • Topic 12 Atomic structure HL
    • Topic 13 Periodicity HL
    • Topic 14 Bonding HL
    • Topic 15 Energetics HL
    • Topic 16 Kinetics HL
    • Topic 17 Equilibrium HL
    • Topic 18 Acids and bases HL
    • Topic 19 Redox HL
    • Topic 20 Organic chemistry HL
    • Topic 21 Measurement and data processing
  • Options
    • SL Option A
    • HL Option A
    • SL Option B
    • HL Option B
    • SL Option C
    • HL Option C
    • SL Option D
    • HL Option D
  • Exam review