This is an excellent resource for teaching IB and A level Class about periodic table and periodic properties. Contents- • The periodic table is arranged into four blocks associated with the four sub-levels—s, p, d, and f. • The periodic table consists of groups (vertical columns) and periods (horizontal rows). • 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. • The periodic table shows the positions of metals, non-metals and metalloids. • Deduction of the electron configuration of an atom from the element’s position on the periodic table, and vice versa. Transition elements have variable oxidation states, form complex ions with ligands, have coloured compounds, and display catalytic and magnetic properties. • Zn is not considered to be a transition element as it does not form ions with incomplete d-orbitals. • Transition elements show an oxidation state of +2 when the s-electrons are removed. • Explanation of the ability of transition metals to form variable oxidation states from successive ionization energies. • Explanation of the nature of the coordinate bond within a complex ion. • Deduction of the total charge given the formula of the ion and ligands present. • Explanation of the magnetic properties in transition metals in terms of unpaired electrons.

The Practice test paper has past exam questions and new exam style questions in two sections (MCQ and Structured) on - Mole calculation -Limiting-reagent -% yield -% purity -Empirical-and-molecular Formula calculation Time limit- 1Hr 15 min ________Marks-80

The resource contains the important instruments and techniques as per IGCSE chemistry. It clearly explains separation techniques and their uses (commonly asked in IGCSE exams theory and ATP papers) along with other objectives such as measurements and criteria for purity. Topics Covered- • Measurement • Pure Substances • Criteria for Purity • Difference between compounds and mixtures • Homogenous mixtures • Heterogenous mixtures • Separation Techniques • Decantation • Filteration • Sublimation • Chromatography • Distillation • Fractional distillation • Crystallisation • Centrifugation

The resource contains all usefull information for Atomic structure as listed below- Daltons Atomic Theory Structure of Atom Electron Thomson’s Model Proton and Neutron Rutherford’s Model Bohr’s Model Isotopes Radioisotpes Uses of Radio isotopes Electronic Arrangement Rules Proton Number Nucleon Number

IB HL / A level / Edexcel Energetics – Free Energy, Born Haber Cycle Includes- MCQ’s and Theory questions Questions and Marking Scheme Content Tested- • Entropy • Enthalpy • Free Energy • Spontaneity • Born Haber Cycle • Enthalpy of Formation for Ionic Lattices • Lattice Energy

IB SL / AS level / Edexcel Redox Reactions Questions and Marking Schemes MCQ’s and Theory questions Contents Tested- Oxidation Reduction Oxygen Hydrogen concept of redox Oxidation states Oxidation State concept of Redox Balancing a Redox reaction Electricity and Redox

IB HL / A level / Edexcel Energetics – Free Energy, Born Haber Cycle Includes- MCQ’s and Theory questions Questions and Marking Scheme Content Tested- • Entropy • Enthalpy • Free Energy • Spontaneity • Born Haber Cycle • Enthalpy of Formation for Ionic Lattices • Lattice Energy

This is an excellent resource I have created for students and teachers to understand various concepts of Mole calculations with solved examples. Contents- Elements Compounds Chemical Formula Word Equation Symbol Equation Balancing Equation Relative Atomic Mass Naming Compound Information from a chemical equation Definition of Mole The mole concept Molar Mass Important Formulae Limiting reagent Reacting Masses Reacting masses and ratios Molar Volumes Concentration of Solutions Water of Crystallisation Empirical and Molecular Formula Percentage Yield Percentage Purity Solved Examples of all the concepts

IB / A level / Edexcel K-12 : Human Biochemistry / Biomolecules Includes MCQ’s and Theory Questions Questions and Marking scheme Content Tested- Carbohydrates Fats Proteins Amino acids Fatty acids Glycerol Tri glycerides Hormones Enzymes Insulin Nucleic acids

IB/ AS-A level / Edexcel K-12 Chemistry – Periodic table Worksheet Exam Style Questions and Marking Scheme Section A MCQ’s and Section B Theory questions Contents- Modern Periodic Table Trends and Periodicity Solubility of chlorides Oxidation states Atomic Radii Metallic character Nature of Oxides Ionization Energy Electron Affinity Melting point Chemical Properties in various groups and periods Transition Metals Complex ions and geometry Properties of Transition metals