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Small particle that is the building block of all matter Atom
Substance that consists of only one type of atom Element
Positively charged particle in the nucleus of the atom Proton
Neutrally charged particle in the nucleus of the atom Neutron
Negatively charged particle that occupies the space in an atom outside the nucleus Electron
An atom that is no longer neutral because it has lost or gained valence electrons Ions
Atoms of the same element that have different numbers of neutrons Isotope
Substance containing atoms of two or more different elements chemically bonded together Compound
Made of 2 parts - A solvent and one ore more solutes Solution
Matter with a composition that is always the same Substance
2 or more atoms that are held together by covalent bonds and act as a unit Molecule
Matter that can vary in composition Mixture
Mixture in which 2 ore more substances are evenly mixed by not bonded together Homogenous mixture
Mixture in which substances are not evenly mixed Heterogeneous mixture
a chart of the element arrangements into rows and columns according to their physical and chemical properties Periodic
Approximately how many elements are metals? 3/4
Approximately how many elements are metalloids? 1/8
Approximately how many elements are non-metals? 1/8
When Mendeleev developed the first periodic table, how many elements were known? 60
How are elements organized on the modern periodic table? Columns - rows and blocks basec on certain patterns of properties
A column on the periodic table having the same chemical properties and react in similar ways Group or family
Rows on table - atomic number increases left to right Period
Where is Alkali found on the periodic table? Column 1
Where is Alkaline on the periodic table? Column 2
Where is Halogens on the periodic table? Column 17
Where are Noble Gases on the periodic table? Column 18
Where are transition elements found on the periodic table? Columns 3-12
Name some properties of Metals? Shiny - Easily pulled into wire or hammered into sheets - Good conductor of electricity and thermal energy
What are some properties of Non Metals? Has no metallic properties - Bad conductor of electricity and thermal energy
What are some properties of Metalloids? Like metals and non metal physically and chemically - Semiconductor of electricity - in high temps it acts like metal - in low temps it acts as non metal
Hydrogen symbol H
Lithium symbol Li
Beryllium symbol Be
Sodium symbol Na
Magnesium symbol Mg
Potassium symbol K
Calcium symbol Ca
Iron symbol Fe
Nickel symbol Ni
Copper symbol Cu
Silver symbol Ag
Gold symbol Au
Zinc symbol Zn
Mercury symbol Hg
Boron symbol B
Carbon symbol C
Aluminum symbol Al
Silicon symbol Si
Tin symbol Sn
Lead symbol Pb
Nitrogen symbol N
Phosphorous symbol P
Oxygen symbol O
Fluorine symbol F
Sulfur symbol S
Chlorine symbol Cl
Argon symbol Ar
Neon symbol Ne
Helium symbol He
Iodine symbol I
Created by: indycreed