PKUESJXGrade 10 Chemistry

Pre-IB Curriculum Outline

(adapted from IB Chemistry SL)

Stuart Gilmer

Introduction

The Grade 10 Chemistry Pre-IB course encompasses carefully selected content from the Standard Level IB programme, with an emphasis on skills

acquisition in order to scaffold progression towards the IB Diploma in Grade 11/12. This course will advance pupils understanding of concepts in which

they should already be familiar with, working to develop the breadth and depth of knowledge to provide a solid preparation for the demands of the IB

Diploma programme.

Course Content Overview

As with Physics and Biology, the Chemistry course will run for 12 weeks and is split into three units; Unit One - Atomic Structure, Unit Two - Stoichiometric

Relationships and Unit Three - Chemical Bonding & Structure, details of each can be found on the pages which follow.

Assessment

Student knowledge will be assessed internally through homework and end of topic tests. Skills acquisition will be assessed through two experimental

reports and a homework assignment on “Using Elements in Industry”, which will be introduced during Unit Two.

Unit 1 Atomic Structure Atomic theory lies at the centre of chemistry. The atom is the smallest unit of matter and it is from this building block that all living organisms and non-living objects are

made. In this unit pupils will look at; the structure of the atom as well as examining the theories and models that have lead to our current understanding and the structure/arrangement of the periodic table.

Topic Learning Outcomes Core

Activities

Assessment Resources

1. The Atom

Pupils will be able to:

- Describe the structure of the atom.

- State the properties and position of subatomic particles.

- Define the terms atomic number, mass number and isotope.

- Calculate and explain non-integer atomic masses from the relative abundance of isotopes.

- Calculate the number of protons, electrons and neutrons in atoms and ions from the mass number, atomic number and charge.

- Describe what is meant by the electromagnetic spectrum.

- Explain the difference between a continuous spectrum and a line spectrum.

- State the electron arrangement of different atoms.

- Identify the relationship between electron arrangement and position

within the periodic table.

- Define what is meant by atomic radius.

- Describe trends in the periodic table including; atomic and ionic radii, ionization energies, electronegativity, melting points and boiling points.

The Active

Atom Atomic

Experts

Atomic Structure Kits 1 & 2

Homework 1

2. Electron

Arrangement

Splitting Light

Flame Tests

Electron Arrangement Card Sort

Atomic Structure Kits 3, 4 & 5

3. The Periodic

Table *Periodic TrendsExperts

Homework 2

End of Unit Test

*Assignment

Atomic Structure Kit 6

Unit 2 Stoichiometric Relationships The mole concept is fundamental to chemists, allowing a universal understanding in relation to the number of particles, mass and volume of a gas. Stoichiometry is

a quantitative method used to examine the relative amounts of reactants and products in a chemical reaction.

Topic Learning Outcomes Core

Activities Assessment Resources

1. The Mole Concept

Pupils will be able to:

- Identify the chemical formulae for different compounds.

- Produce balanced chemical equations.

- Describe the mole concept and apply it to substances.

- Define the term molar mass (M).

- Distinguish between; atomic mass, molecular mass and formula mass.

- Calculate relative atomic mass, relative formula mass and molar mass.

- Determine experimental empirical/molecular formulas.

- Apply the state symbols; (s), (l), (g) and (aq).

- Describe what is meant by Stoichiometry.

- State what is meant by limiting and excess reactants.

- Calculate theoretical and experimental yields.

- Apply Avogadro's law to determine the mole ratio of reacting gases.

- Define the terms solute, solvent and solution.

- Carry out calculations involving concentration, mass of solute, and volume of solution.

Calculating Ages

Active Balancing

The Mole Challenge

Homework 1 Stoichiometric

Relationships Kits 1 & 2

2. Reacting Masses & Volumes

How Big is the Balloon?

Calculating Yield

Experiment

Homework 2

End of Unit Test

Stoichiometric Relationships

Kits 3 & 4

Unit 3 Chemical Bonding & Structure

At the very heart of Chemistry lies chemical bonding and structural arrangements, which determine the properties and therefore uses of different compounds.

Topic Learning Outcomes Core

Activities Assessment Resources

1. Ionic Bonding

- Describe what is meant by Ionic Bonding.

- Explain how positive ions (cations) and negative ions (anions) are formed.

- Determine which ions will be formed when metals from groups 1, 2 and 3 lose electrons and non-metals, from groups 6 and 7 gain electrons.

- Determine why the number of electrons is lost or gained.

- Deduce the formula and state the name of ionic compounds formed from a group 1,2 or 3 metal and a group 5 or 6 non-metal.

- Predict whether a compound of two elements will be mainly covalent or ionic.

- Describe what is meant by Covalent Bonding.

- Draw the electron distribution of single and multiple bonds in molecules.

- State and explain the relationship between the number of bonds, bond length and bond strength.

- Compare the relative electronegativity of two or more elements based on their position in the periodic table.

- Identify the relative polarity of bonds based on electronegativity values.

- Draw and deduce Lewis structures for molecules and ions.

- Predict the shape and bond angles for molecules with four charge centers on the central atom.

- Identify the shape and bond angles for species with two or three negative charge centres.

- Predict molecular polarity based on bond polarity and molecular shape.

2. Covalent Bonding

ILPAC3.2

Homework 1

Unit 2 Chemical Bonding & Structure II

Topic Learning Outcomes Core

Activities Assessment Resources

3. Intermolecular Bonding

- Identify and describe the different types of intermolecular forces and explain how they arise.

- Describe and explain how intermolecular forces affect physical properties e.g. melting & boiling points.

- Describe what is meant by metallic bonding.

- Explain how metallic bonds arise.

- State what is meant by an alloy.

- Compare the physical properties of each type of bond including; melting point, boiling point, volatility, conductivity and solubility.

- Predict the relative values of melting point, boiling point, volatility, conductivity and solubility based on the different types of bonding present in a substance.

ILPAC3.4

4. Metallic Bonding

5. Physical Properties

Homework 2

End of Unit Test