1. Atoms and the periodic table Ch 4
Exceptional interactive periodic table Atomic Radius graph - PBS
Yr 10 Chem wiki
Introduction to Atomic Structure - Australian - Youtube 13 mins
The periodic table Groups and Periods Australian - youtube 14 mins

2. Atoms - the particles that make up all materials, the smallest part of an element that can take part in a chemical reaction.
Nucleus - heavy core at the centre of the atom, made of protons and neutrons - positively charged
Electron - subatomic particle that has a negative charge and found in orbitals around the nucleus
Proton - subatomic particle that has a positive charge and that is found in the nucleus of an atom
Neutron - neutrally charge subatomic particle that is found in the nucleus of an atom
Atomic number - number of protons in an atom

3. Electron configuration
Electron configuration - the specific arrangement and location of electrons in electron shells
Electron shells/orbits - energy levels/regions surrounding the nucleus where electrons may be found
Element - pure substance composed of neutrally charged atoms with the same atomic number/number of protons
Ground state - the lowest energy arrangement of an atom's electrons in energy levels (shells)
Indirect evidence - evidence that does not involve direct observation
Molecule - substance made of two or more atoms bonded together - eg water, oxygen gas, sodium chloride, methane

4. Periodic table
Periodic table - a list of all known elements arranged in increasing atomic number
Periods - horizontal rows that represent the number of electron shells or orbital levels
Groups - vertical columns; determined by the increasing number of electrons in the outer shell and protons in the nucleus.
Alkali Metals - Group 1 elements (1+) lithium, sodium, potassium etc
Alkaline earth metals - Group 2 elements (2+) beryllium, magnesium, calcium etc

7. Transition elements - Groups 3-12 scandium to zinc - block of metallic elements with atomic numbers covering
Post-transition metals - aluminium, tin, lead etc
Semi-metals/metalloids - boron (B), silicon (Si), germanium (Ge), arsenic (As) etc
Non-metals - hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur, selenium (not listed in other groups)
Halogens - Group 17 elements (1-) fluorine, chlorine, bromine etc
Noble gases - Group 18 - Elements in the far right column/group are inert gases - Helium, Neon, Argon, Krypton etc

8. Lanthanides * - metallic elements with atomic numbers 58-71 lanthanum to lutetium
Actinides * - metallic elements with atomic numbers actinium to lawrencium
Allotropes - formed from the same pure element, but with a different molecular structure eg diamond and graphite
Organic compound - that is or was living and contains carbon
Organic molecules - molecules that have a backbone of carbon atoms

9. Bonding
Ion An atom that has a positive (lost electron) or negative charge (gained electron)
Ionic bond A chemical bond resulting from the attraction between oppositely charged ions eg Na+Cl-
Covalent bond A chemical bond that involves sharing a pair of electrons between atoms in a molecule O2 gas, water, N2 gas
Metallic bond a bond formed when many metal atoms share their pooled valence electrons
Superscript valency + or - eg H+ or Cl-
Subscript number of atoms O(2)
Coefficient number of Molecules eg 2 NaCl

10. Ch 5.1, 5.2, 5.3 starting at page 141
Chemical Reactions wiki
Questions 1-14 page 147
Chemical Equations - Part A Youtube 10 mins
Chemical equations – Part B Youtube 9 mins