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NO
Nitrosyl
CO
Carbonyl
NH3
ammine
NH2NH3+
hydrazinium
OXIDE
-2
(SO4)-2
-2 CHARGE
SCN
-1 charge
NCS
-1 charge
C2O4-2(oxalate)
-2 charge
CH3COO- Acetate
-1 charge
o-2-2-
peroxo
CH2NH3
Methylene amine
O2
Dioxygen
C5H5N
PYRIDINE
As(C6H5)3
triphenylarsine
Y(2)(SO4)3
Yttrium (III) Sulfate
I-
Iodo
OSO32-
Sulfato
ONO
Nitrito
SCN-
Thiocyanato
NCS-
isothiocyanato
what do the group 16 chalogens consist of
oxygen, sulfur , seleniun, tellurium and polonium
in group 16, the higher oxidation states are more _ down the group
stable
why does oxygen prefer to form discrete molecules whereas heavier group 16 elements often form chains ?
pi bonding is less favorable down the group, it is more energetically favourable to form single bonds
electron configuration for group 16 elements?:
[X]nS2nP4 and it requires two more electrons to satisfy the configuration of a noble gas
which group has an Exception to ionization energy trends
Group 16 elements are exceptions to ionization energy trends across periods.
Oxygen's higher 2nd ionization energy
Oxygen has a higher second ionization energy compared to fluorine, contrary to general trends.
is sulfur a metal or non metal
nonmetal
crystal structure of sulfur
Sulfur exhibits orthorhombic and monocyclic crystal structures (see image).
what were the coating materials that sulfur can be coated with in batteries
inorganic oxides, polymer layers using dielectric barrier discharge (DBD) plasma technology under atmospheric conditions.
how does a lithium sulfur battery work
solid lithium anode (-) and the lithium detaches from the metal to the cathode (+) and then travels back to the anode and causes charge discharge. (this goes back and forth )
why are lithium sulfur batteries not the best?
lithium likes to bond to different elements, thats why it bonds to electrolights making battery working less
what are group 14 family
Carbon, silicon, germanium, tin, and lead
is carbon a non-metal , metal, or metalloid
non-metal
are silicon and germanium metals, nonmetals or metalloids?
metalloids
is tin and lead a metal, non metal, or metalloid
metals
bismith applications
1) It is used in the treatment of ulcers
2) role in cancer treatment
3) additive in X-ray radiation shielding materials
n Cancer treatment and
suppression of SARS-CoV-2
Germanium applications
1) solar energy conversion
2) anode material in lithium batteries
3) manufacturing alloys
4) radiation detection
why is germanium good for anode? what are the side effects?
has a high conductivity and good diffusion rate . Due to volume expansion it cracks, and unstable formation of solid electrolyte interpahse
what is the solution towards germanium batteries
use a stable carbon source and mix Ge nanpparticles with carbon nanotubes
what increase crystallinity of carbon+layer of carbon coating on Ge surface, increase conductivity and stabalizes solid electrolyte interphase?
Germanium
are are tin applications?
1) prevents corrosion on metals
2) soldering
3) flame retardant
4) reducing agent for aromatic nitro groups
who discovered amorphous solid of silicon
Jons Jacobs Berzelius
the crystalline silicon was discovered by who 1824
Jöns Jacob Berzelius,
is sillicon a metal, nonmetal, or metalloid?
metalloid
what crystal structure does silicon have?
diamond structure
lead applications
1) lead monooxide is good for technology
2) PbO has a high votality at low temps
3) N-type semi conductor tin oxide has tetragonal rutile structure
4) the interfacial layer created stops carriers from metal- semiconductor junction from penetrating semiconductor surface
xiHde
Heterojunction of Stannic Oxide and Lead Monoxide
meeting point where these two different semiconductor materials come together. Its a border where their unique properties interact and create effects, understanding this is important for energy devices and electronics
what are group 1 metals more commonly found with?
halides, oxides and complex anions
what group have the lowest ionization energy in each period that they belong to?
group 1 elements
who discovered lithium
Sir humphrey Davy and William thomas brande
what is the 33rd most abundant element in earths crust (0.002%) , does it occur freely?
lithium , no
what is lithium used in?
electric cards and smartphones and used to treat bipolar disorder
Organolithium reagents research article summary
used in alkyl lithium compounds, and Gilman Reagents
and they are used in reagents to add or substitute imines
organolithium substitues a hydride for what group
alkyl group
most abundant element on earth
Sodium
who discovered sodium
Sir humphry davys
why is sodium important
they act as catalyst for the synthesis of ammonia
the ability of metals in alloys to dissociate is due to what
their high electron donation capability
who discovered cesium
robert bunson
uses of cesium?
Heavy congeners: organometallics such as cesium
who discovered potasium
SIR humphrey Davy in 1807
what are considered a viable alternative option for lithium batteries?
potassium batteries
potassium is also known as
kalium
what was proposed as a heat- transfer coolant for some nuclear reactors?
sodium potassium
why are nobel gases important
strong oxidizing agents, full octect
who discovered neon
Sir william Ramsay and Morris Travers
what beams manipulate rapid tumor reoxygenation in syngenic mouse models?
Neon ion
what investigates the use of charged particle beams composed of _ ions for biomed app
neon
argon uses
production of titanium and reactive elements , abundant in the atmosphere
gas storage in solid materials
element most rate in earth atmosphere
krypton
applications of krypton?
ground water dating
who made xenon?
William Ramsay and Morris Travers
9 stable isotopes, rare “xenos” and monoatomic
xenon
xenon applications?
separation of xenon from nobel gas mitures of Argon, Krypton, and Xenon using hydrate tech. can be used to separate nobel gases
distilation colum did what in terms of separation of xenon from nobel gas mixtures?
increase product concentration