C1 Flashcards
what is an atom
the smallest part of an element
what is an element
a substance made from only 1 type of atom
what is the mass and charge of an electron
mass = o charge = -1
what is a mixture
a combination of substance which are not chemically joined together
what is a compound
anything made up of 2 or more atoms which are chemically joined together
what is a molecule
a group of atoms chemically joined together
what is a solute
a substance which can be dissolved
what is a solvent
the substance in which dissolving is happening
what is a solution
a mix between a solvent and a solute
what is distillation
separates a liquid from solid and keeps the liquid
what is filtration
separates a solid from a liquid
what is crystallisation
separates a dissolved solid from a liquid
what is chromotography
separates inks
what is fractional distillation
separates a mixture of liquids
how does distillation work
https://www.youtube.com/watch?v=gIMtFj2gPs8
how does chromatography work
https://www.youtube.com/watch?v=hndJf_5aB9I
how does filtration work
https://www.youtube.com/watch?v=ka6o5VCPRF8
how does crystallization work
https://www.youtube.com/watch?v=ka6o5VCPRF8
how does fractional distillation work
https://www.youtube.com/watch?v=86WY2mV9jiU
what did JJ Thompson discover
the electron
what was JJ Thompson’s idea of the atom and what did it look like
his idea was that the atom was like a plum pudding. a ball of positive charge with electrons scattered in it
what was Rutherford experiment and what did it prove
alpha scattering experiment and it proved that the atom was mostly empty space with a dense positively charge are in the middle called the nucleus.
he also discovered the proton
what did Bohr discover about the atom
that electrons orbit the atom in electron shells
what did james chadwick discover
the neutron
what is an ion
an atom with more or less electrons
what is an isotope
isotopes have the same atomic number but different mass number because the have different number of neutrons. isotopes have similar chemical properties but different physical properties like density
done an-
-d dusted
