Chemical bonding Flashcards
What are ionic bonds
bonds formed by the transfer of electrons between atoms to produce cations and anions, including the use of a dot and cross diagram
What is an ion
An atom or group of atoms with a positive or negative charge
What is the atomic number
Number of protons
What is mass number
protons and neutrons
which parts of atoms are equal
protons and electrons
How to find relative atomic mass
Ar= (relative isotopic mass x %)+(relative isotopic mass x %)/100
structure of an ionic compound
a lattice structure consisting of a regular arrangement of ions and held together by strong electrostatic forces between oppositely charged ions
Properties of ionic compound
high MP and BP high forces between ions, do they conduct electricity as solids molten or in an aqueous solution
Ionic chemical bond
Particles are oppositely charged and occurs in compounds formed from a metal and a non metal
What’s a compound
a substance containing 2 or more chemically combined elements
Covalent chemical bonds
Particles are atoms which share pairs of electrons which occurs in most non metallic elements and their compounds
Metallic chemical bonding
Particles are atoms which share delocalised electrons and occur in metals and alloys
