Mind Map Gallery Atomic Structure Mind Map
Atomic structure. Atoms consist of. Electrons. negative charge. Neutrons. Protons. positive charge. Isotopes. atoms of same element. same atomic number.
Atomic-Structure-Mind-Map
Isotopes
- Atoms of same element
- Same atomic number
- Therefore they share the smaechemical properties
- Due to same electonicconfiguration of both isotopes
- Different mass numbers(number of neutrons different)
- Different physical properties(Density, melting point and boilingpoint)
Electronic Configuration
- Electrons arranged around thenucles in the shells of an atom
- Shells number 1,2,3 and so on
- Each shell can occupy acertain number of electrons
- Finding electron configuration
- Find the proton number of the atom
- Find out the numbers of electrons fromthere. (number of protons = number ofelectrons)
- Arrange the electrons in shells. Electronsoccupy the shell closest to the nucleusfirst
- Electrons only start occupying a newshell when the previous one has beenoccupied
- Valence Electrons
- Electrons found in theoutermost occupied shell of anatom
- Outermost shell refers to theshell which is furthest from thenucleus
- Nature of elements can bedetermined by the number ofvalence elctrons
- 1-2 are metallic. Theexception being aluminiumwith 3
- 4-8 are generally non-metallicelements
Gains or loses Electrons
- Ions
- Gain electrons
- Usually non-metals
- Anions
- Ions are negatively charged
- Lose electron
- Cations
- Usually a metal
- Ions are positively charged
Combines Chemically
- Molecules
- Molecules of compounds
- Consists of atoms of differentelements
- Examples
- Hydrochloric Acid
- Methane
- Ammonia
- Carbon dioxide
- Water
- Molecules of elements
- Consists of atoms of thesame element
- Nitrogen
- Hydrogen
- Oxygen
- Chlorine
- Phosphorus
One Atom Consist of..
- Electron
- Hold a negative charge
- mass of 1/1836
- 1/2000 the mass of a proton
- Number of electron andneutron = mass number
- Neutron
- No charge
- mass of 1
- Proton
- Holds a positive charge
- Number of protons = atomic number