Periodic Table and Periodic Trends Notes. Mendeleevs Periodic Table By the mid-1800s, about 70 elements were known to exist By the mid-1800s, about 70.
Reactions and Solution Stoichiometry. Types of Reactions Combination (Synthesis) Decomposition Combustion Single Replacement Double Replacement (Metathesis)
Redox reactions
CHAPTER 4/25 Atomic Structure Nuclear Chemistry. A Long, Long Time Ago… Greek Philosophers 4 elements are Earth, Water, Fire, and Air Aristotle - first.
Chemical Formulas and Counting Atoms. In any chemical formula, we show: 1.Symbols: for the elements in the compound 2.Subscripts: to represent the number.
Atomic Structure & Periodicity Chapter 7. Early 1900’s Rutherford model detailed nucleus plus electrons moving around. Rutherford model detailed nucleus.
