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Chemistry definition

SPM chemistry definition

QuestionAnswer
Ionic Bond Is formed when atoms are joined together by transferring electrons between metal and non-metal elements.
Covalent Bond Is formed when atoms are joined together by sharing of electrons between non-metals elements.
Octet and Duplet Stable electron arrangement with eight of two where elements do not donate, receive or share electrons with other elements.
Chemically inert/nonreactive An atom achieved stable octet/duplet electron arrangement that do not donate, receive or share electrons with other elements.
Proton number Number of protons in a nucleus of an atom.
Nucleon number Number of protons and neutron of an atom.
Melting point Temperature where a substance changes from solids to liquid or vice versa.
Boiling point Temperature where a substance changes from liquid to gas or vice versa.
Isotopes An atom of an element that has same number of protons but different number of neutrons/nucleon.
Empirical formula Empirical formula shows the simplest ratio of atoms of different elements present in the chemical compound.
Molecular formula Molecular formula is the chemical formula that shows the actual number of atoms of different elements present in a compound.
Chemical formula Representation of a chemical reaction using chemical formula for the substances.
Cation Positively charged ion.
Anion Negatively-charged ion.
Relative atomic mass Of an element is the average mass of one atom of the element when compare with 1/12 mass of carbon-12.
Relative molecular mass Of a molecule is the average mass of a molecule when compared with 1/12 mass of carbon-12.
Relative formula mass Of a compound is the average mass of compound when compared with 1/12 mass of carbon-12.
Molar mass Mass of one mole of substance.
Created by: IbukiFuko
 

 



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