Flashcards
Electrons and Bonding
Flashcards do conjunto (16)
- 1What does an increase in shell number an increase in shell number nThe greater the radius of its orbital
- 2What is the formula for number of electrons within that shell?2n^2
e.g. in 5 energy level orbital you have 2*5^2 = 50 electrons - 3how many orbitals can fit into the s/p/d/f-subshell?1,3,5,7
- 4how many electrons can fit in orbitals of the s/p/d/f sub-shell?2,6,10,14
- 5Why must electrons have opposite spin in an orbital?Helps counteract repulsion between the - charges, or else they'd just be blasted away and no longer orbit the nucleus
- 6So, in one energy level there are multiple subshells.So n=2 has 2s and 2px/y/z orbitals
- 7Blocks and the periodic tableS-block, highest energy electron is in s-subshell.
SO highest e- could be in 1s or 5s etc. - 8What occurs to D-block elements 3d sub-shell energy level when the 3d shell is filled?It falls below the 4s sub-shell
- 9So order of emptying filling in d-block?4s empty and fills before the 3d
- 10Ionic melting and boiling pointsNear all are solid at RTP
Insufficient energy to overcome strong electrostatic forces of attraction between oppositely charged ions in the giant ionic lattice.
Therefore, high mpt and bpt. - 11SolubilitySoluble in polar solvents
dependent on relative strength of attraction within the giant ionic lattice and the attraction of the ions to the water molecules.
Therefore decreases as charge increases. - 12Electrical conductivitySolid-
No mobile charge carriers
non-conductor
liquid/dissolved:
Solid ionic lattice breaks down
ions free to move as mobile charge carriers - 13Covalent bondingStrong electrostatic attraction between shared pair of electrons and the nuclei of the bonded atoms by an overlap of orbitals, each containing 1 orbital
- 14Why can boron only for 3 bonds?1s2 2s2 2p1
Only 3 valence (outershell) electrons can participate in covalent bonding. - 15Sulphur bondingCan tease out all 6 valence electrons to become unpaired to bond with other atoms
Expansion of the octet, only available from n=3 onwards - 16—
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- O usuário eliminou as informações de disciplina FlashCards sobre Electrons and Bonding, criado por Usuário eliminado em 19-04-2018.
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- Usuário eliminado · abr 2018
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- 19 abr 2018
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- Criado por I Shouldn't be awake · 15 abr 2018
- Copiado por I Shouldn't be awake · 19 abr 2018
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