CHEM 110 Lecture Notes - Lecture 11: Superfluidity, Noble Gas, Electron Configuration
15 Jun 2018
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CHEM 110: MAIN GROUP CHEMISTRY
Group 17 Hydrides:
e.g. fluorine (weakest acid HF acid), chlorine, bromine, iodine (strongest acid,
HI): = � �, ��
Group 17 Oxides and Oxoacids: More oxygens = stronger oxoacids, more acidic
- Several versions
- Less acidic the less the electronegative the atoms are
Group 18: Noble Gases
Atomic Properties:
- 8,2 oxidation sates ( Kr – Rn),
- Smallest size/highest valence
- Highest IE in period
- Size increases down the group
- IE/EN decreases down the group
Physical Properties:
- All free atoms
- Mp/bp increases (no metallic elements) as you get heavier
- Density increases down group
- Easier to bond to heavier noble gases (Xe down)
Neil Bartlett: new structures being formed with Xe, complex ions, platinum complexes,
first molecule species XeF4
Gary Schrobiligen - fundamental science, labs to make reactivity between elements
and noble gases
Superfluids – unique traits, He – low melting point, 0 viscosity
CHAP 24: TRANSITION ELEMENTS AND THEIR COORDINATION COMPOUNDS
Properties of Transition Elements:
- ‘d’ block, inner transition ‘f’ block (lanthanides, actinides)
- All metals
- Many coloured
- Many are paramagnetic
- Properties of compounds related to electron configuration of TM element/ion
Period 4: First Row Transition
- Most commonly used elements
- P. 4&5 – [noble gas] ns2(n-1)dx
find more resources at oneclass.com
find more resources at oneclass.com
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CHEM 110 Full Course Notes
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Document Summary
Group 17 hydrides: e. g. fluorine (weakest acid hf acid), chlorine, bromine, iodine (strongest acid, Hi): (cid:1854)(cid:1867)(cid:1866)(cid:1856)(cid:1871) (cid:1859)(cid:1857)(cid:1872) (cid:1875)(cid:1857)(cid:1853)(cid:1863)(cid:1857)(cid:1870)=(cid:1853)(cid:1855)(cid:1856)(cid:1871) (cid:1871)(cid:1872)(cid:1870)(cid:1867)(cid:1866)(cid:1859)(cid:1857)(cid:1870) (cid:4666)(cid:1853)(cid:1864)(cid:1864) (cid:1857)(cid:1876)(cid:1853)(cid:1865)(cid:1868)(cid:1864)(cid:1857)(cid:1871) (cid:1853)(cid:1870)(cid:1857) (cid:1872)(cid:1867)(cid:1876)(cid:1855),(cid:1853)(cid:1855)(cid:1856)(cid:1855) (cid:1859)(cid:1853)(cid:1871)(cid:1857)(cid:1871)(cid:4667) Group 17 oxides and oxoacids: more oxygens = stronger oxoacids, more acidic. Less acidic the less the electronegative the atoms are. 8,2 oxidation sates ( kr rn), Mp/bp increases (no metallic elements) as you get heavier. Easier to bond to heavier noble gases (xe down) Neil bartlett: new structures being formed with xe, complex ions, platinum complexes, first molecule species xef4. Gary schrobiligen - fundamental science, labs to make reactivity between elements and noble gases. Superfluids unique traits, he low melting point, 0 viscosity. Chap 24: transition elements and their coordination compounds. D" block, inner transition f" block (lanthanides, actinides) Properties of compounds related to electron configuration of tm element/ion. Cr & cu exceptions, cr s1d10 to fill the valence of d" orbital to achieve half-filled subshells. *tm elements lose s" electrons before d" electrons.
