- Electron: A subatomic particle that has a very low mass and carries a single negative electric charge.
- Neutron: A subatomic particle that bears no net electric charge. Its mass is slightly greater than a proton’s.
- Proton: A subatomic particle having a single positive electric charge. The mass of a proton is about 1840 times that of an electron.
- Nucleus: The central core of an atom.
- Nucleon number (mass number) Symbol A: The total number of protons and neutrons found in the nucleus of an atom.
- Avogadro’s number (NA): 6.02 X 1023; the number of particles in a mole.
- Relative atomic mass, Ar, is defined as the mass of one atom of an element relative to 1/12 of the mass of an atom of carbon-12, which has a mass of 12.00 atomic mass units.
- Relative isotopic mass is like relative atomic mass in that it deals with atoms. The difference is that we are dealing with different forms of the same element.
- Isotopes have the same number of protons, but different numbers of neutrons. Hence, isotopes of an element have different masses.
- Relative molecular mass, Mr, is defined as the mass of one molecule of an element or compound relative to 1/12 of the mass of an atom of carbon-12, which has a mass of 12.00 atomic mass units.
- Relative formula mass is used for substances that do not contain molecules, such as sodium chloride, NaCl, and is the sum of all the relative atomic masses of the atoms present in the formula of the substance.
- It is important to remember that since these are all relative masses, they have no units.
- Mole: The amount of substance which contains 6 × 1023 atoms, ions or molecules. This number is called
- Avogadro’s constant.
- Empirical formula: A formula showing the simplest ratio of atoms present.
- Molecular formula: A formula showing the actual number of atoms of each element present in one molecule.
STPM Chemistry: Atoms, Molecules and Stoichiometry [Checklist]
STPM Chemistry Syllabus 3rd Term
Chapter 14: Introduction to
Organic Chemistry
14.1 Bonding of the carbon
atoms: the shapes of ethane, ethane, ethyne and benzene molecules
14.2 General, empirical,
molecular and structural formulae of organic compounds
14.3 Functional groups:
classification and nomenclature
14.4 Isomerism: structural
and stereoisomerism
14.5 Free radicals,
nucleophiles and electrophiles
14.6 Molecular structure and
its effect on physical properties
14.7 Inductive and resonance
effect
Chapter 15: Hydrocarbons
15.1 Alkanes
15.2 Alkenes
15.3 Arenes
Chapter 16: Haloalkanes
Chapter 17: Hydroxy
Compounds
17.1 Introduction to hydroxy
compounds
17.2 Alcohols
17.3 Phenols
Chapter 18: Carbonyl
Compounds
Chapter 19 Carboxylic Acids
and their derivatives
19.1 Carboxylic acid
19.2 Acyl chlorides
19.3 Esters
19.4 Amides
Chapter 20: Amines, Amino
Acids and Proteins
20.1 Amines
20.2 Amino acids
20.3 Proteins
Chapter 21: Polymers
STPM Chemistry Syllabus 2nd Term
Chapter 7: Chemical
Energetics
7.1 Enthalpy changes of
reaction, ΔH
7.2 Hess’ law
7.3 Born-Haber cycle
7.4 The solubility of solids
in liquids
Chapter 8: Electrochemistry
8.1 Half-cell and redox
equations
8.2 Standard electrode
potential
8.3 Non-standard cell
potentials
8.4 Fuel cells
8.5 Electrolysis
8.6 Applications of
electrochemistry
Chapter 9: Periodic Table:
Periodicity
9.1 Physical properties of
elements of Period 2 and Period 3
9.2 Reactions of Period 3 elements
with oxygen and water
9.3 Acidic and basic
properties of oxides and hydrolysis of oxides
Chapter 10: Group 2
10.1 Selected Group 2
elements and their compounds
10.2 Anomalous behavior of
beryllium
10.3 Uses of Group 2
Chapter 11: Group 14
11.1 Physical properties of
Group 14 elements
11.2 Tetrachlorides and
oxides of Group 14 elements
11.3 Relative stability of
+2 and +4 oxidation states of Group 14 elements
11.4 Silicon, silicone and
silicates
11.5 Tin alloys
Chapter 12: Group 17
12.1 Physical properties of
selected Group 17 elements
12.2 Reactions of selected
Group 17 elements
12.3 Reactions of selected
halide ions
12.4 Industrial applications
of halogens and their compounds
Chapter 13: Transition
elements
13.1 Physical properties of
first row transition elements
13.2 Chemical properties of
first row transition elements
13.3 Nomenclature and
bonding of complexes
13.4 Uses of first row
transition elements and their compounds
STPM Chemistry Syllabus 1st Term
Chapter 1: Atoms, Molecule
and Stoichiometry
1.1 Fundamental particles of
an atom
1.2 Relative atomic,
isotopic, molecular and formula masses
1.3 The mole and the
Avogadro constant
Chapter 2: Electronic
Structure of Atoms
2.1 Electronic energy levels
of atomic hydrogen
2.2 Atomic orbitals: s, p
and d
2.3 Electronic configuration
2.4 Classification of
elements into s, p, d and f blocks in the Periodic Table
Chapter 3: Chemical Bonding
3.1 Ionic bonding
3.2 Covalent bonding
3.3 Metallic bonding
3.4 Intermolecular forces:
van der Waals forces and hydrogen bonding
Chapter 4: States of Matter
4.1 Gases
4.2 Liquids
4.3 Solids
4.4 Phase diagrams
Chapter 5: Reaction Kinetics
5.1 Rate of reaction
5.2 Rate law
5.3 The effect of
temperature on reaction kinetics
5.4 The role of catalysts in
reactions
5.5 Order of reaction and
rate constants
Chapter 6: Equilibria
6.1 Chemical Equilibria
6.2 Ionic Equilibria
6.3 Solubility Equilibria
6.4 Phase Equilibria

