Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
|
Matter |
Mixture or a pure substance and is made up of atoms and molecules. |
|
|
Pure Substance |
Matter that contains one kind of particle. Classified into two main groups 1.elements 2.compunds |
|
|
Elements |
Pure substance that can not be broken down into simpler parts by chemical methods. |
|
|
Compound |
Pure substance that is made up of one to more different elements that are chemically combined. |
|
|
Mixture |
More than one type of particle. Can separate using physical means (strain, evaporation, and magnet) Different temp. for change of sate. |
|
|
Physical Properties |
Characteristics of a substance that you can observe and measure without changing the identity of a substance. |
|
|
Quantitative |
Description without detailed measurements (numbers) |
|
|
Quantitative Physical Properties |
Colour- colourless,red,black Odour-sweet,pungent,mouldy State-soild,liquid,gas Texture-rough,smooth,bumpy Lustre-shinny,dull Malleability-soft,hard, pliable |
|
|
Quantitative |
Description with measurement (numbers) |
|
|
Quantitative Physical Properties |
Viscosity- resistance to flow Melting Point- temp of melting(soild to liquid) Boiling Point-temp of boiling(liquid to gas) Solubility-ability to dissolve another substance Hardness-ability to be scratched (harder can scratch softer but softer can't scratch harder Conductivity-conduct electricity Density-ratio of mass to volume |
|
|
Solubility |
Measurement of ability of a substance to dissolve in another substance.(mass of solute per mass of solvent or mass of solute per volume of solvent) Solute- sold being dissolved Solvent-liquid doing the dissolving Insoluble-Substance that doesn't dissolve or has very low solubility |
|
|
Chemical Property |
How a substance reacts with something else. |
|
|
Atom |
Smallest particle of an element |
|
|
Electron |
Negatively charged particle with in an atom |
|
|
Nucleus |
Centre of an atom |
|
|
Proton |
Positively charged particle that is part of every atomic nucleus. |
|
|
Neutron |
Uncharged particle that s part of almost every atomic nueleus |
|
|
Atomic Number |
Number of protons in an atom. In a neutral atom the number of protons and electrons are the same |
|
|
Atomic Mass |
Sum of total of all protons plus all the neutrons in the atom |
|
|
Ionic Compound |
Compounds that are formed with a metal and non-metal. Form when a metal transfers its electrons to the non-metal. Have opposite charges(attract). All atoms are now stable |
|
|
Ions |
Certain element that can have ore than one charge. |
|
|
Metals |
Give away electrons and become + charged. Conducts heat,electricity. Shinny, ductile and malleable. High melting point,boiling point and density. Solid at room temp. |
|
|
Non-metals |
Solid and gas at room temp. Not good conductor of heat and electricity. Dull, brittle and is usually not dense. Accepts electrons easily to become - charged |
|
|
Metalloids |
Elements that posses metallic non-metal properties. |
|
|
Valence Electrons |
Electrons in the outer shell of an atom. |
|
|
Chemical Bond Ion |
Formed between two ions with opposite charges. |
