Objective of the lesson
2.1 Analysing matter
A student is able to:
? Describe the particulate nature of matter,
? state the kinetic theory of matter,
? define atoms, molecules and ions,
? relate the change in the state of matter to the change in heat,
? relate the change in heat to the change in kinetic energy of particles,
? explain the inter-conversion of the states of matter in terms of kinetic theory of matter.
2.2 Synthesising atomic structure
A student is able to:
? describe the development of atomic model,
? state the main subatomic particles of an atom,
? compare and contrast the relative mass and the relative charge of the protons, electrons and neutrons,
? define proton number,
? define nucleon number,
? determine the proton number,
? determine the nucleon number,
? relate the proton number to the nucleon number,
? relate the proton number to the type of element,
? write the symbol of elements,
? determine the number of neutrons, protons and electrons from the proton number and the nucleon number and vice versa,
? construct the atomic structure.
2.3 Understanding isotopes and assessing their importance
A student is able to:
? state the meaning of isotope,
? list examples of elements with isotopes,
? determine the number of subatomic particles of isotopes,
? justify the uses of isotope in daily life.
2.4 Understanding the electronic structure of an atom
A student is able to:
? describe electron arrangements of elements with proton numbers 1 to 20,
? draw electron arrangement of an atom in an element,
? state the meaning of valence electrons,
? determine the number of valence electrons from the electron arrangement of an atom.
2.5 Appreciate the orderliness and uniqueness of the atomic structure
A student is able to:
? describe the contributions of scientists towards the understanding of the atomic structure,
? describe the creative and conscientious efforts of scientists to form a complete picture of matter.
2.1 Analysing matter
A student is able to:
? Describe the particulate nature of matter,
? state the kinetic theory of matter,
? define atoms, molecules and ions,
? relate the change in the state of matter to the change in heat,
? relate the change in heat to the change in kinetic energy of particles,
? explain the inter-conversion of the states of matter in terms of kinetic theory of matter.
2.2 Synthesising atomic structure
A student is able to:
? describe the development of atomic model,
? state the main subatomic particles of an atom,
? compare and contrast the relative mass and the relative charge of the protons, electrons and neutrons,
? define proton number,
? define nucleon number,
? determine the proton number,
? determine the nucleon number,
? relate the proton number to the nucleon number,
? relate the proton number to the type of element,
? write the symbol of elements,
? determine the number of neutrons, protons and electrons from the proton number and the nucleon number and vice versa,
? construct the atomic structure.
2.3 Understanding isotopes and assessing their importance
A student is able to:
? state the meaning of isotope,
? list examples of elements with isotopes,
? determine the number of subatomic particles of isotopes,
? justify the uses of isotope in daily life.
2.4 Understanding the electronic structure of an atom
A student is able to:
? describe electron arrangements of elements with proton numbers 1 to 20,
? draw electron arrangement of an atom in an element,
? state the meaning of valence electrons,
? determine the number of valence electrons from the electron arrangement of an atom.
2.5 Appreciate the orderliness and uniqueness of the atomic structure
A student is able to:
? describe the contributions of scientists towards the understanding of the atomic structure,
? describe the creative and conscientious efforts of scientists to form a complete picture of matter.