front 1 Atom | back 1 Basic unit of matter |
front 2 Nucleus | back 2 The center of the atom |
front 3 Electron | back 3 A negatively charged particle |
front 4 Element | back 4 Pure substance that consists entirely of one type of atom |
front 5 Isotopes | back 5 atoms of the same element that differ in the number of neutrons |
front 6 compound | back 6 a substance formed by the chemical combination of two or more elements |
front 7 ionic bond | back 7 when one or more electrons are transferred from one atom to another |
front 8 ions | back 8 positively and negatively charged atoms |
front 9 covalent bond | back 9 sharing electrons |
front 10 molecule | back 10 smallest unit of most compounds |
front 11 Van der waals forces | back 11 the attraction of inter molecular forces between molecules |
front 12 Hydrogen bond | back 12 atom with partial negative charge |
front 13 cohesion | back 13 a attraction between molecules of the same substance |
front 14 adhesion | back 14 a attraction between molecules of different substances |
front 15 mixture | back 15 a material composed of two or more elements |
front 16 solution | back 16 forming a type of mixture |
front 17 solute | back 17 substance that is dissolved |
front 18 solvent | back 18 the substance in which the solute dissolves |
front 19 suspensions | back 19 such mixtures of water and non dissolved material |
front 20 pH scale | back 20 to indicate the concentration of H+ ions in a solution |