Chemistry Flashcards

Question	Answer
Atom proton +1 nucleus neutron 0 nucleus electron -1 orbit	Image: c-atom_e.gif (image/gif)
Element	made up of one type of atom He helium
Compound	a molecule made up of atoms of 2 or more different elements H20 water
Mixture	2 or more atoms/molecules mixed together but not chemically bonded
Atoms	smallest amount of a substance that we can have that will still retain all the features of that substance
Molecules	2 or more atoms joined together through attractive forces known as bonds the atoms may be of the same or different elements
Atomic structure	number of protons in an atom of an element = atomic number protons + neutrons in an atom = mass number protons = electrons
Ionic bonding	Image: images__2_ (image/jpg)
Covalent bonding	Image: bonding_types-water.gif (image/gif)
Metals	metals come from the earth's crust some metals are very unreactive and are found as elements in their native state metals like zinc, iron, lead are found combined with oxygen in compounds these metals can be extracted using chemical reactions
Metal ores	oxidation reduction electrolysis displacement
Blast furnace	Image: Blast-Furnace.gif (image/gif)
Electrolysis	Image: CE221700FG0010.gif (image/gif)
Alkane formula	Image: images__3_ (image/jpg)
Alkanes	Image: organic1.gif (image/gif)
Properties of alkanes	larger alkane molecule: less volatile higher bioling point less flammable higher viscosity

Resource summary

	Created by katiehumphrey about 11 years ago