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Quantum Concept
periodic table electrons
| Question | Answer |
|---|---|
| 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
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