268287
Descripción
Mapa Mental por ilovelionz, actualizado hace más de 1 año
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Creado por ilovelionz
hace más de 10 años
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Grade 10 Chem overview
- Metals
- form cations (think cat on a steel beam)
- Multivalent elements
- cations can have diff # of valence electrons, still be stable
- can form 2 diff compounds w/ a non-metal
- Ex. CuCl and CuCl2
- copper (I) chloride
- copper (II) chloride
- Which is it?
- Undo crisscross
- check that non-metal has the right charge (subscripts might be reduced)
- check that non-metal has the right charge (subscripts might be reduced)
- Undo crisscross
- copper (I) chloride
- Ex. CuCl and CuCl2
- cations can have diff # of valence electrons, still be stable
- Ionic bond
- Attraction between opposite electrostatic forces
- Divide subscript by GCM
- Attraction between opposite electrostatic forces
- form cations (think cat on a steel beam)
- Non-metals
- Form anions (steal electrons, therefore evil)
- Polyatomic ions
- stable group of atoms with overall electric charge
- Molecules
- behave like single ion in ionic compound
- behave like single ion in ionic compound
- only form in presence of a metal
- except ammonium (+)
- except ammonium (+)
- Naming
- polyatomic: first (non-oxygen) element "ate"
- normal ionic compound naming
- Except OH (hyrdoxide), NH4 (ammonium)
- normal ionic compound naming
- polyatomic: first (non-oxygen) element "ate"
- Formula
- crisscross, but treat polyatomic as one element with one charge
- crisscross, but treat polyatomic as one element with one charge
- stable group of atoms with overall electric charge
- Molecule
- two or more covalently bonded atoms (typically non-metal)
- atoms share unpaired electrons
- if no unpaired left, a pair may swing up to be shared
- if no unpaired left, a pair may swing up to be shared
- atoms share unpaired electrons
- molecular elements- HOF BrINCl
- diatomic elements mostly halogens
- diatomic elements mostly halogens
- Molecular compounds
- Compound-diff elements
- Compound-diff elements
- NEVER reduce subscript
- two or more covalently bonded atoms (typically non-metal)
- Form anions (steal electrons, therefore evil)
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