| Question | Answer |
| How was the original periodic table organized? | atomic mass
|
Who came up with the term "atomos" as the smallest, indivisible piece of matter?2 | Democritus
| How many energy regions does an atom of Ca have?3 | four
| What group/family is highly reactive and always in compounds?4 | alkali metals
| What are 2 pure substances?5 | elements&compounds
| How many valence electrons does an atom of Silicon have?6 | four
| What bond forms when atoms that share valence electrons?7 | covalent
| How many neutrons does an atom of Chlorine have?8 | eighteen
| What subatomic particle has a negative charge?9 | electron
| What is the symbol for Lead?10 | Pb
| What can you predict about an element if you know its location on the PT?11 | properties
| Is Germanium a metal, nonmetal, or metalloid?12 | metalloid
| What group/family rarely forms compounds?13 | noble gases
| What is the most reactive nonmetal group/family?14 | halogens
| What do chemical formulas represent?15 | compounds
| What type of bond is formed between a metal & nonmetal?16 | ionic
| Two or more different elements combine to form a ?17 | compound
| What is formed by particles in a random ratio?!8 | mixture
| What rule states that atoms want to have 8 valence electrons to be stable?19 | octet rule
| Why might the atoms in a molecule be drawn in different sizes?20 | larger if more #energy regions
| Why does an atom have no charge?21 | pos&neg charges equal
| Whose atomic model contains protons, electrons,&neutrons?22 | Chadwick |
