Slide 1 The Atom and The Periodic Table of Elements Slide 2 We can classify (arrange) elements in different ways: naturally occurring / made by scientists solid/liquid/gas…

Slide 1 Chapter 2 Quiz 1.One of the four most common elements in living organisms is? 2.What trace element is commonly added to table salt to prevent goiters? 3.Chemical…

Some more Regents Chemistry practice… What is the empirical formula of C3H6? A: CH D: CH6 B: CH2 C: CH3 Empirical formula is the simplified version of a molecular formula……

Some more Regents Chemistry practice… What is the empirical formula of C3H6? A: CH D: CH6 B: CH2 C: CH3 Empirical formula is the simplified version of a molecular formula……

PowerPoint Presentation Atomic 
Models Around 400 BC a Greek scientist 
called Democritus said that matter was 
made up of small particles he named 
'Atoma'…

Alchemy Unit – Investigation II. Protons, Neutrons, Electrons, And Mass. Admit Slip. What is calcium’s symbol? What is the atomic number of calcium? What is the number…

1. A rand M r 2. Let’s try counting the number of rice particles in a bucket of rice. Is it easy? 3. Relative atomic mass, A r Atoms arevery tiny particles .Atoms havevery…