Ionic Bonding

what is an ion

a charged particle formed when atom or group of atoms looses or gains electrons

why atoms form ions

achieve a fully filled outermost electron shell

like those of noble gas

how is classification of metal and non metal related to valence electrons

when metal

atom looses valence electrons

forms positive ions

when non metal

atom tends to gain electrons

forms negative ions

rules for naming positive ion

follow element name

rules for naming negative ion

name ends with ‘ide’ e.g oxygen → oxide

similarities between metal and metal ions

smae number of protons

differences between metal atom and ion

atom electrically neutral/ ion has positive charge

atom one more electron shell than ion

Ion has lesser electrons that atom

atom doesnt have fully filled outer electron shell while ion has

similarities between non metal atoms and ions

both same number of proton and neutron

same number of electrons shells

differences between non metal atoms and ions

atom electrically neutral while ion has negative charge

ion more electrons than atom

atom doesn’t have fully filled electron shell while ion has

what is ionic bonding

strong electrostatic force of attraction between opp charged ions

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how is ionic bond formed

metal atom looses valence electrons

forms positively charged ion which has fully filled outermost electron shell

non metal atom gains electrons

forms negatively charged ion which has fully filled outermost electon shell

strong electrostatic forces of attraction

between opp charged ion

forms ionic compound

rule for naming ionic compound

first part is metal ion

second part non metal ion

e.g magnesium oxide

Giant ionic lattice structure mean

giant = many ions

ionic = opp charged ions

lattice= regular/ repeating patterns

how are ions arranged in giant ionic structure

alternating between positive and negative ions

what holds giant ionic structure

electrostatic force of attraction