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Grade 9 Science 4RJ2

RJs Study Stack for Chemistry

Mass the amount of matter in something
Chemical reaction a process that rearranges the molecular structure of matter
Chemical change a change in the starting substance and a production of one or more new substances
Sublimation from solid to gas or gas to solid
Electron a subatomic particle with negative charge and is on the outside of the atom
Nucleus both the neutrons and protons in the middle of an atom
Metals a substance that is shiny, malleable, hard, good conductor of heat and electricity
Volume how much space an object takes up
Element a substance that is made up of one type of atom
Suspension a fluid that is made up of different types of solid particles (at least two)
Proton a subatomic particle that has the positive charge that is in the middle of an atom
Periods a row on the periodic table (7 of them)
Metalloids elements that have the qualities of a metal and a non-metal (ex. silicon)
Density mass per unit volume of a substance
Atom the smallest unit of an element
Solute the substance that is being dissolved in a solution
Solvent the substance that is doing the dissolving in a solution
Solution two or more substances mixed together where you cannot see the different parts.
Neutron the subatomic particle that has no charge and might be in the nucleus with a proton
Covalent bond two different atoms are sharing electron and causes them to be linked together. This helps them to have a full outer shell.
Non-metals an element not having the character of a metal. Do not conduct well, not shiny, very brittle
Chemical formula notation that indicates the type and number of atoms in a pure substance
Compound a couple of different types of elements making up a pure substance
Chemical equation a symbolic representation of a chemical reaction
Ionic bond a bond between a positive ion and a negative ion that results in a neutral charge. Opposites attract
Qualitative shows the qualities of a substance and has nothing to do with numbers (example how it smells, feels, tastes)
Quantitative the qualities of a substance that has something to do with numbers (you can measure this) for example how big it is, mass.
Created by: marsenault