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Transcript of Take Out Pencil Science Notebook, Open to white boarding notes (page 36)
![Page 1: Take Out Pencil Science Notebook, Open to white boarding notes (page 36)](https://reader030.fdocuments.in/reader030/viewer/2022032802/56649e0e5503460f94af7bed/html5/thumbnails/1.jpg)
Take Out
PencilScience Notebook, Open to white boarding
notes (page 36)
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Take Out
PencilCatalyst SheetScience Notebook, Open to Chemistry cover
page
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CatalystUse your reading from this
weekend to explain how the argument could be made that “Chemistry caused civilization”.
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Page 39
10 boxes down, horizontal line
Everything I Know About Chemistry:
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10 more boxes down, horizontal line
Everything I Want to Know About Chemistry:
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Page 39
Remaining space
The Beginnings of Chemistry:
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460 BCDemocritus develops the idea of the atom around 400 BCE
He pounded up materials in his pestle and
mortar until he had reduced them to
smaller and smaller particles which he
called
ATOMA
greek for not to be divided
(cut)
The Beginnings of Chemistry
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460 BCAnother Greek philosopher, Heraclitus, suggested everything was made out of fire
The world itself consists of a law-like interchange of elements, symbolized by fire. Thus the world is not to be identified with any particular substance, but rather with an ongoing process
governed by a law of change.
The Beginnings of Chemistry
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460 BCAristotle announced that there were four elements, or basic substances, from which all else was composed
Air, Earth, Fire, and Water; He believed that everything else, was a blend of these four.
The Beginnings of Chemistry
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Homework
Read and fully annotate “Matter, Elements, and Atoms” reading on page 40
Add the 5 underlined words and their definitions to your Vocabulary section
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Exit Ticket
Why should the slope of your line of best fit in the Circumference vs Diameter Lab have been close to 3.14?
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Take Out
PencilCatalyst SheetScience Notebook, Open to Vocabulary section
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Catalyst1. Describe the difference
between matter and mass2. Describe the difference
between an atom and an element
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10 boxes down, horizontal line
Everything I Know About Chemistry:
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Page 39
10 more boxes down, horizontal line
Everything I Want to Know About Chemistry:
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Page 39
Remaining space
The Beginnings of Chemistry:
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Chemistry
Chemistry is the study of the composition, properties, and behavior of MATTER
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460 BCDemocritus develops the idea of the atom around 400 BCE
He pounded up materials in his pestle and
mortar until he had reduced them to
smaller and smaller particles which he
called
ATOMA
greek for not to be divided
(cut)
The Beginnings of Chemistry
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Aluminum
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An Aluminum Atom
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How small is an atom?
It would take 40,000,000 aluminum atoms to make a 1 cm
line of aluminum
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Element Atom
What is an element?What is an atom?
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An element is a pure substance that cannot be
broken down into any other
substances.
Element AtomAn atom is the smallest particle
of an element that still has all
the properties of an element.
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An atom is composed of three main subatomic particles
Atom
Subatomic Particles
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Subatomic particles are….
The smaller parts that make up an atom
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An atom is composed of three main subatomic particles
Atom
Neutrons ElectronsProtons
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Protons, Neutrons and Electrons are the building blocks of
atoms
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NucleusThe nucleus is the center of the atom, where the
protons and neutrons are located.
electron
neutron
proton
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A proton has one positive charge and a mass equal to one mass unit.
A neutron has no charge and a mass that is also equal to one mass unit.
Proton
+ Charge
Neutron
Neutral Charge
What charge does the nucleus have as a whole?
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6
CCarbon
12.011
The name of the
element
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6
CCarbon
12.011
The name of the element
The element’s atomic symbol
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6
CCarbon
12.011
The name of the element
The element’s atomic symbol
The atomic number of the element: This number tells you the number of protons in the
atom.
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6
CCarbon
12.011
The name of the element
The element’s atomic symbol
The atomic number of the element: This number tells you the number of protons in the
atom.
The mass number or atomic mass: This number tells the mass
of one atom.
…which is approximately the sum of protons and neutrons in the nucleus, since each proton and
each neutron has a mass equal to one mass unit.
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6
CCarbon
12.011
Using the beads on your table, create the nucleus of 1
Carbon atom
Draw that nucleus in your notes
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Take Out
PencilCatalyst SheetScience Notebook
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CatalystDetermine the number of protons
and neutrons in the nucleus of one atom of each element listed below:
1. Helium 4. Bromine2. Chlorine 5. Rubidium 3. Calcium 6. Xenon
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Remember:
atomic mass - atomic numbernumber of neutrons
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Atomic (Average) mass unit
Number of neutrons must be changing because we know
that protons don’t6
CCarbon
12.011
Isotopes – Atoms of the same element that
have a different number of neutrons
from the average
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ElectronsElectrons are located around the nucleus.They are so tiny that they almost have no mass.Each electron has a charge of negative 1 (-1).
Electron
Negative Charge
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In a neutral atom, how does the number of protons compare to the number of electrons?
A neutral atom has an equal number of protons and electrons
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So, to review…
Nucleus Electron Cloud
Location Tiny core in the center of the atom
The region around the nucleus; model looks much
like a galaxy in space
Charge Positive Negative
Relative size relationship Diameter of a baseball Chase Stadium
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Proton Neutron Electron
Location Nucleus Nucleus Electron cloud
ChargePositive charge equal in size, but opposite
to the negative charge of an electron
Neutral
Negative charge equal in size, but opposite to the
positive charge of a proton
Size
1.673 x 10 -24 g
equal in mass with the neutron and
1800 times greater than an electron
1.675 x 10 -24 g
equal in mass with the proton
9.110 x 10 -29 g
1/1800 the size of the proton
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4
BeBeryllium
9.01
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The periodic table is an orderly listing of all the elements, arranged from left to right and top
to bottom in order of increasing atomic number
Review: what do the numbers mean?
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6
CCarbon
12.011
The name of the
element
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6
CCarbon
12.011
The name of the element
The element’s atomic symbol
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6
CCarbon
12.011
The name of the element
The element’s atomic symbol
The atomic number of the element: This number tells you the number of protons in the
atom. And because, in a neutral atom, the number of protons and
the number of electrons are equal, it also tells the number of
electrons.
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6
CCarbon
12.011
The name of the element
The element’s atomic symbol
The atomic number of the element: This number tells you the number of protons in the
atom. And because, in a neutral atom, the number of protons and
the number of electrons are equal, it also tells the number of
electrons.
The mass number or atomic mass: This number tells the mass
of one atom, which is approximately the sum of protons
and neutrons in the nucleus, since each proton and each
neutron has a mass equal to one mass unit, and the electrons have
virtually no mass.The color: Depending on the periodic table, will tell you what type of element it
is. In Carbon’s case, it is a nonmetal
Remember: Look at website! and this
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6
CCarbon
12.011
The name of the element
The element’s atomic symbol
The number of protons.
The number of electrons.
The number of protons + the number of neutrons
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7
NNitrogen
14.007
Using the beads on your table, create the nucleus of the
most common atom of Nitrogen
Add the electrons, presuming we are creating a neutral
atom
Draw this is in your notebook
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Homework
Complete “Atomic Structure Practice” on pages 42 and 43 of science notebook
Use your Periodic Table in your planner if necessary
Add isotope to Vocabulary Section
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Exit Ticket
11
NaSodium
22.989
1. Determine the number of protons,
neutrons, and electrons in a
neutral atom of sodium
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Exit Ticket
36
KrKrypton
83.798
2. Determine the number of protons,
neutrons, and electrons in a
neutral atom of krypton