Dive Chemistry Lesson 23

What did Ruthiford discover? – Most alpha particles passed straight through.
Some slightly deflected.
Few bounced back completely.
Electron capture – • mass stays the same
• atomic number decreases by 1
The octet rule does not apply to – first 5 elements
MIXTURE – Substance made by elements combining physically.
Carbon-14 dating – The process of estimating the age of once-living material by measuring the amount of a radioactive isotope of carbon present in the material
Hemoglobin S can be separated from hemoglobin D by:
a electrophoresis on a different medium and acidic pH
b hemoglobin A2 quantitation
c electrophoresis at higher voltage
d Kleihauer-Betke acid elution – a electrophoresis on a different medium and acidic pH
Hydroboration (Anti-Markovnikov) –
The number of protons in an atom is called the
Heats of Solution-Solvated – Solvated: solute particle that is surrounded by solvent molecules
Protein function – Proteins are the major structural materials of animal tissue and are involved in the maintenance and regulation of life processes.
Examples: enzymes, many hormones, eg insulin and haemoglobin.
monoprotic – An acid that can give up one proton.
Covalent bond – A bond formed by a shared pair of electrons.
isotope – Different versions of the same element, thus have the same number of protons, but differ in the number of neutrons.
mercury Hg – can have Hg(2) +2 and Hg +2
heterogeneous mixture – A mixture in which different materials can be seen easily
The number оf prоtоns in аn аtom is cаlled the
cathode ray tube (CRT) particles – cathode rays were a stream of negatively charged particles. (electrons)
the nucleus of an atom contains the – protons and neutrons

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