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Quantum Concept

periodic table electrons

What is Quantum Concept? energy not continuous but small bundles of energy, has wave and particle nature, individual unit is known as photon
Where is the shell? is an area outside of the nucleus and has a certain energy levels
Some facts about electrons energy levels? electrons in the energy level have energy that correspond to the energy level, electrons have a 'low" (ground) and "excited" energy state, electrons will go between ground and excited states
What happens when electrons go down to the ground state? they emit the energy as a photon of light energy
What is energy emitted? it is quantized, not continuous spectrum (i.e. single "light" or spectral line)
electron color and elements? each color of light corresponds to an energy level change / each element produces a unique set of spectral lines
What are orbitals? 3 dimension regions of space,orbits and orbitals sound similar but are different,"uncertainty principle" it currently is impossible to know the position,location and momentum of an electron 95% probability of finding an electron of given energy in orbital
What is the valence shell concerning the periodic table? each period ( row) in the periodic table is equal to a new electron shell or energy level, each family ( column ) in the periodic table has the same number of valence electrons
What is the valence shell? the outermost shell of the atom, valence electrons in the outermost shell ( usually form bonds with another atom )
What is the rule of octet? wanting to get 8 electrons in the valence energy level ; atoms bond until this level is complete
What is the rule of octet rules for loosing and gaining? atoms with 1,2, or 3 valence electrons lose them during bonding and atoms with 5,6, or 7 valence electrons gain electrons during bonding
How did chemist name the orbitals (energy levels) around a nucleus? "k, l, m n, o, p, and q"
What shell is the one closet to the nucleus and farthest? "k" and "q'
Do all the shells hold the same amt of electrons? NO
What is the maximum amt of electrons? 32
What shells do you fill first? and what is the maximum for each shell? the inner shell first; 1st ( k ) : 2e ; 2nd ( L ) : 8e ; 3rd ( m ) : 18e 4th ( n ) : 32e
. .
What is electron configuration of an element? a list of all sublevels that have electrons ; based on the configurations of each element, the periodic table can be divided into FOUR blocks ; s-block, p-block, d-block,f-block
What is the ionization? the process of adding or removing electrons from an atom or group of atoms ( atoms that do not filled valence shells may undergo ionization )
What is an ion? a charged atom ( a neutral atom has lost or gained one or more e' )....if the atom gains or loses electrons, it no longer is neutral ( i. e. # p and # e not equal )
What is cation? positively charged ion ( less electrons than protons )
What is anion? negatively charged ion ( more electrons, than protons )
Created by: flanstan