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chemistry

memorize.aimemorize.ai (lvl 286)
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Section 1

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cobalt-60

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ChemistryScience
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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (41)

Section 1

(41 cards)

cobalt-60

Front

chemotherapy, radiation therapy

Back

iodine 131/125

Front

tracer for PET san or ct

Back

Hund's Rule

Front

orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron, and all electrons in singly occupied orbitals must have the same spin

Back

s

Front

2 electron per orbital 1 type

Back

Heisinberg

Front

-Bohr is wrong -Uncertainty principle -we cannot determine the EXACT location of an electron and its velocity at the same time, we can ESTIMATE it -using the velocity, we can approximate its location

Back

d

Front

2 e/orbital 8 electrons in total 5 types

Back

Aufbau Principle

Front

An electron occupies the lowest-energy orbital that can receive it

Back

cr and cu

Front

exceptions to electron configuration

Back

1st energy level

Front

-2 electrons - 1 sublevel: s

Back

3rd energy level

Front

-18 electrons - 3 sublevels: s, , p , d

Back

Light History Newton vs Einstein

Front

1st idea: light is a wave Newton said that light was a particle Einstein said it was both with the photoelectric effect: when light shines on a metal it releases electrons, no matter the intensity of the light, the same electrons always come out WAVE-PARTICLE DUALITY

Back

beta particles

Front

-an electron -beta sign or 0 e -1 -charge of-1 -smaller than alpha -medium dangerous: travel 1 to 2 meters -heavy clothing, piece of metal

Back

Line Spectrum vs. Continuous Spectrum

Front

-line spectrum show specific colors as electrons jump down the energy levels -continuous spectrum shows all color without a break

Back

electromagnetic spectrum

Front

increasing frequency decreasing wavelength increasing energy

Back

balmer

Front

jumps to 2 visible light medium transition energy

Back

p

Front

2 electrons/orbital 6 electrons total 3 types

Back

diamagnetic

Front

all electrons are paired

Back

carbon-14

Front

Dating method used by archeologists

Back

cation

Front

- take from the highest energy level -if more than 1 high enegy level, take from the highest sublevel

Back

jumping of electrons

Front

1/h= RZ^2( 1/ni^2 - 1/no^2) Z= atomic number R= 1.097*10^7 m-1

Back

valance electrons for middle elements

Front

do the whole electron configuration add the powers of highest energy levels

Back

Bohr

Front

-we can determine the exact location of an electron in an energy level -there are circular energy levels -as the levels were further, they get closer

Back

visible or not

Front

6.510^-7m to 4.1010^-7 look at wavelength

Back

paschen

Front

jumps to 3 infrared region low transition energy

Back

Pauli Exclusion Principle

Front

no two electrons in the same atom can have the same set of four quantum numbers

Back

f

Front

2e/orbital 14 electrons total 7 types

Back

isoelectronic

Front

have the same number of electrons, and hence the same ground-state electron configuration don't only say yes, prove it with electron configuration

Back

to find energy formula

Front

E= h (planks constant)*v 6.63*10^-34

Back

wavelength

Front

the distance from any point on a wave to an identical point on the next wave

Back

frequency

Front

number of wave that pass a given point over a second

Back

2nd energy level

Front

-8 electrons - 2 sublevels: s and p

Back

given frequency or wavelength to find the other

Front

c= v*h c= 3.00*10^8 m/sec 3.00*10^10 cm/sec

Back

crest vs. trough

Front

Crest: The high point of a wave Trough: The low point of a wave

Back

lyman

Front

jump to 1 ultraviolet region always has the highest energy transition

Back

4th energy level

Front

-32 electrons - 4 sublevels: s,p,d,f

Back

half life

Front

length of time required for half of the radioactive atoms in a sample to decay

Back

radioactive elements

Front

give off radiation as they decay

Back

Study the shapes

Front

of the orbitals

Back

gamma rays

Front

-waves, energy - 00Y -most dangerous: travels km -very thick concrete wall, lead

Back

alpha particles

Front

-big - 2He-4 (fish) -charge is +2 -nucleus of He atom -least dangerous: travels few cm -can be blocked with sheet of paper

Back

paramagnetic

Front

1 or more unpaired electrons

Back