Karteikarten

Atoms and Elements

Imani :D Science GCSE Englisch 11 Karten

Karten in diesem Stapel (11)

1What are Atoms?Atoms are the smallest particles of matter, that we cannot break down by chemical means
2What makes an element an element?Elements are made up of only one kind of atom
3The properties of a solid...particles are densely packed and have strong forces (vibrate)
4Absolute zero is......the temperature at which particles do not move (- 273°)
5What is diffusionwhen a substance moves from an area of high concentration into an area of low concentration
6What is distillation?the process of heating a mixture (with a liquid) to separate two elements by evaporating the other
7What are sub-atomic particles?protons, neutrons, electrons (particles found in an atom)
8what are isotopes?atoms of the same element but with different numbers of neutrons
9what defines a "noble element"an element with a full shell of electrons
(1st shell = 2 electrons
2nd shell = 8 electrons)
10When is an ionic bond most likely to occur?When the elements are further away from one another on the periodic table of elements
11What is osmosis?the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides