Explain The Law Of Conservation Of Mass And Law Of Multiple Proportions Using Examples Accordingly Of What Is And Is Not Possible Explain The Evidence (And Associated Experiments) That Lead Us To Adopt The Nuclear Model Of The Atom And Reject The Plum Pudding Model Of The Atom Describe The Generic Structure Of An Atom Calculate The Correct Number Of Subatomic Particles For Any Isotope Of Any Element Calculate The Atomic Mass Of An Element From Information Of Its Isotopes (Mass And Abundance) And Visa Versa Identify The Parts Of The Periodic Table And Explain Why The Periodic Table Has The Form That It Does Explain The Relationship Between Atoms And Ions Name A Substance From Its Formula And Derive Its Formula From Its Name

Law of Conservation of Mass

Mass is neither created nor destroyed in a chemical reaction.

Law of Multiple Proportions

When two elements form different compounds, the mass ratios of the elements are simple whole numbers.

Evidence for Nuclear Model

Rutherford's gold foil experiment showed that atoms have a dense nucleus, rejecting the plum pudding model.

Generic Structure of an Atom

An atom consists of a nucleus (protons and neutrons) surrounded by electrons in orbitals.

Subatomic Particles Calculation

Carbon-14 (C-14) has 6 protons, 8 neutrons, and 6 electrons.

Atomic Mass Calculation

Atomic mass = (mass of isotope₁ × abundance₁) + (mass of isotope�� × abundance₂).

Periodic Table Structure

The periodic table is organized by increasing atomic number, with groups sharing chemical properties and periods indicating energy levels.

Relationship Between Atoms and Ions

Atoms become ions by gaining or losing electrons, resulting in a charge.

Naming and Deriving Substances

NaCl is sodium chloride; derived from sodium (Na) and chlorine (Cl).