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bio atomic st. chmi

QuestionAnswer
two major particles are found in the nucleus of most atoms Protons and neutrons
have weight and positive charge Protons
equal weight to proton and no charge neutron
outside the nucleus in shells (subdivided into ........) are ..... (no weight and negative charge orbitals and electrons
protons=neutrons=electrons and since protons have a positive charge and electrons have and equal but ............ charge atoms are neutral. opposite negative
......... in most cases are when the proton No. is not identical to the neutron number (exceptions include Hydrogen). Usually the neutron No. is greater than the proton no. Isotopes
for a given element the ......... number is ......... and fixed. proton, fixed
...... the number of protons in and atom Atomic number
....... is the number of protons + neutrons (usually twice the stominc number) Mass number
...... is the average of mass numbers of all isotops of an atom Atomic weight
....... and therefore........ and ....... formation is a result of the organization of electrons in the orbitals surrounding the nucleus stability, reactivity, bond
the number of.......... required to be........ to or........ from the outermost shells dictate the number of bonds that must be formed to make the atoms stable electrons, added, lost
the ..... must be complete to be stable outer most shell
the unstable and therefore reactive atoms are... hydrogen, carbon, oxygen. sodium, and chlorine
the stable and thus unreactive atom is .... helium
given that the inner shell of all atoms can only contain ___ electrons and outer shell a max of __ electrons you should be able to see atoms that do not have the max number in the outer are unstable and reactive also the number of bonds to stabilize 2,8
Created by: jhood
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