1. Chemical Bonds 2. Atom – the smallest unit of matter“indivisible” Helium atom 3. electron shells Atomic number = number of Electrons Electrons vary in the amount…

1. Atom – the smallest unit of matter “indivisible” Helium atom 2. electron shells a) Atomic number = number of Electrons b) Electrons vary in the amount of energy…

1. Chemical Bonds 2. Atom – the smallest unit of matter“indivisible” Helium atom 3. electron shells Atomic number = number of Electrons Electrons vary in the amount…

1. Periodic TableObjectives 5.4 Locate metals, nonmetals and metalloids in theperiodic table. 5.5 Locate the family of alkali metals, alkaline earthmetals, halogens…

1. Elements, Atoms, Compounds and MoleculesBy Darcy p. Simonsen 2. Element A chemical element is a pure chemical substance consisting…

1. Elements, Atoms, Compounds and MoleculesBy Darcy p. Simonsen 2. Element A chemical element is a pure chemical substance consisting…