Atoms - names and definitions - basics 0.0 / 5 ? ChemistryAtoms and compoundsGCSENone Created by: harrietlivvCreated on: 11-07-17 18:07 Atomic mass is.. The number of protons in an atom 1 of 21 Mass number is... The number of protons + neutrons 2 of 21 Electrons are equal to... Protons 3 of 21 Mass number - atomic number =... number of neutrons 4 of 21 An isotope is... The same type of and element that contains a different amount of neutrons 5 of 21 An i ion is... an electronically charged atom that either looses or gains eletrons and a full outer shell. 6 of 21 The nucleus contains... protons and neutrons 7 of 21 Both protons and neutrons are... Subatomic particles 8 of 21 A protons charge is... +1 9 of 21 A neutrons charge is... 0 10 of 21 An electrons charge is... -1 11 of 21 When a metal looses atoms it becomes... Positive 12 of 21 When a non-metal looses atoms it becomes... Negative 13 of 21 An ionic compound is... A strong force between oppositely charged atoms held together by electrostatic forces 14 of 21 Ionic compounds can only conduct electricity when they are... Molten or dissolved in a liquid 15 of 21 A molecule is... Two atoms chemically combined (dont get it mixed up with a compound which is only stuck together not chemically combined!) 16 of 21 Dot and cross diagrams always have a... Full outer shell (when drawing you only draw the full outer shell not and other center ones) 17 of 21 A covalent bond is... When a weaker intermolecular force and a stronger intermolecular force bond together 18 of 21 An intermolecular force is... When two molecules join together 19 of 21 Fullerenes (buckyballs) are made up of... 60 carbon atoms 20 of 21 Bucky balls are an alletrope ( different physical form) made from carbon balls normally making... 3 covalent bonds which leaves one electron free to conduct electricity 21 of 21
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