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Matter and classification of matter, periodic table

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hasanahatesscience's version from 2016-01-08 02:03

Section 1

Question Answer
what is matter?matter is anything that has a mass and takes up space.
pure substancemade up of only one type of particle
mixturemade up of two or more types of particles
elements a pure substance that cannot be broken down (CARBON MERCURY HELIUM)
compoundsa pure substance that contains TWO or MORE different ELEMENTS in a fixed proportion (salt (NaCL)) carbon dioxide (CO2)
solutiona mixture where the particles mix well to give the appearance of only 1 phase (koolaid, salt water)
solvent is a subtancethat does the dissolving
solute is a subtancethat is dissolved.
heterogeneous mixturemixture where there is more than one phase (smoothie, sandwich)
physical properties characteristics of substance that can be sensed/described or measured without the formation of a new sunstance. COLOUR DENSITY TEXTURE MALLEABILITY VOLUME STATE OF MATTER TEXTURE ODOUR
chemical propertiesdescribes how a substance reacts with another substance in a chemical reaction to form a new substance. REACTION TO ACID, OXYGEN, WATER and IF ITS COMBUSTIBLE
physical changesoccurs when a substance has been changed in same form, yet it remained the SAME SUBSTANCE CHEMICALLY. CUTTING BOILING MELTING
chemical changesresult in the original substance being changed to an entirely new material with different properities. generally not reversible. COOKING COMBUSTION RUSTING
heat/ light given off, gas being produced, solid forms when 2 liquids are mixed, colour change and difficulty in reversing are5 clues that chemical change has occured
chemical reactions contain reactantsand produce products.
memorize

Section 2

Question Answer
the current periodic table was put togetherand organized by d.mendeleev
the elements on the periodic table are arranged in orderof increasing atomic number (# of protons
the periodic table is arranged with METALS ON THE LEFTNON METALS ON THE RIGHT AND METALLOIDS IN BETWEEN
lustre, malleability, conductivity, reactive with acid, state at room temp for METALSshiny, malleable, conductors, reactive with acid, and solid at room temp
lustre, malleability, conductivity, reactive with acid, state at room temp for NON METALSdull, brittle, insulation, not reactive with acid, solids liquids gas
chemical groupselements in periodic table are arranged into groups VERTICAL COLUMNS
noble gases (18, 8)very unreactive, filled valence shell (Stable) EX: HELIUM NEON ARGON)
alkali metals (1)FIRST COLUMN EXTREMLY REACTIVE - LITHIUM POTASSIUM SODIUM
alkaline earth metals (2)SECOND COLUMN REACTIVE METALS (beryllium, calcium, magnesium)
halogens (17, 7)LOCATED 7th column. MOST REACTIVE NON METALS. fluorine, chlorine bromine
hydrogen (1)belongs to group by itself. NON METAL
memorize

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