chapter 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are two components to an atom their components and unit of atom | 1.nucleus:protons and neutron=atom =mass
2.electron cloud:electrons= atom volume
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| Elements in same row and column have same? | Row(period): size
Column(group): electronic and chemical properties
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| Orbitals bw first row vs Second row | first: one orbital, shell 1s
second: filled first shell of e-, 4 orbitals to accept add of e-. one 2s orbital and three 2p orbital
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| Group number represents number of? | valence e-
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| different e-: p: n: | e: ions
p:elements
n: isotopes
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| Define isomer | different molecules have same molecular formula
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| S orbital size, number of orbitals and e- fit | sphere, 1, 2e-
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| P orbital size, number of orbitals and e- fit | dumnbell,3, 6e-
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| d orbital size, number of orbitals and e- fit | 4 leaf clover, 5, 10 e-
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| ionic vs covalent bodning | i: transfer e- bw differing electronegative elements
c: sharing e- bw 2 nuclei
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| second row bonding rules | 1-3 group elements= corresponding bonds
4+ group elements= octet
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| Fish hook bw double headed arrows | fish: moving one e-, arrow= movment of e-
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| method to find amount of bonds in a element | 1=3 groups correspondence, 4+ group want octet so 8- valence e-
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| method of lone pairs | valence e- - 4
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| Frormal charge= | # ve- -# of owned atoms
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| owned atoms= | # of unshared e- + 1/2(shared e-)
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| shared vs unshared e- | un: # of e- in a lone pair, shared: bonded e-
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| Longest/shortest element in bond length: longest: Fr, shortest: He | Fr, shortest: He
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| Bond angle | determine shape around any atom bonded to 2 other atoms
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| geometry of atom determined by | #of groups (atoms or lone pair)
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| groups definition according to bond angle | atoms or lone pair
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| Second row arrangements geometry and bond angle for 2,3,4 groups | 2:linear, 180degrees, 3: trigonal planar, 120d, 4: tetrahedral, 109.5d
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| Bond Lenth | average distance bw center of two bonded nuclei in angstroms (pm)
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| Bond length conversion across column | BL increase down column as atom size increases
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| Bond length conversion across row | BL decrease across row as atom size decreases
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| Constitutional isomer | same molecular formula but different dot connects
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| Third row exceptions of octet rule | B= 6e-, Be= 4e-, highly reactive
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| resonance | two lewis structure having same atomic placing but differ e- arrangement
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| double head arrow in resonance | seperate r structures
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| Resonance rules | change multiple bond and nonbonded e-, NOT atom placement and single bonds, same # of unpaired e-, valid l structures
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| polar | one polar bond or two or more bond dipoles that reinforce
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| nonpolar | no polar bond or two or more bond dipoles that cancel bc of equal and opposite in direction
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
salihim
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