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Mixed up! Periodic Table Atomos Family ratio Interaction
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Chapter 8 and 10 IPS Chapter 8 and 10 IPS
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Answer: A-atomic number (D)# of protons and # of electrons) B Chemical symbol
C- Atomic mass (# of protons + neutrons) E-Chemical Name
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A
D
dD
B
E
C
Answer:
200
Heterogeneous/suspension
Heterogeneous/Colloid
Heterogeneous/Colloid
Homogenous/ solution
How can Fs and R account for the conservation of mass?
Answer: The reaction before and the product produced is equal.
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Answer: Fs and R combine in a constant ratio but some of the rings or fastener would remain on use just like in figure 8.4.
How can you use Fs and R to illustrate the reaction between copper and oxygen?
Four lab teams made compounds using fasteners and rings. Some made FsR, and some made FsR2. The mass of fasteners used and the resulting mass of the product are show below:
Which teams made FsR and which teams made FsR2?
Answer: Use Fs/Fs-FsR
I. 2 II. 2 III. 1 IV. 2 I, II, IV equal FsR2 and FsR equal III
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Team Mass of Fs Mass of Product
I 10 15
II 8 12
III 10 20
IV 20 30
A pair of students receives 10 g of fasteners (Fs) and 4 g of rings ( R). They make 14 g of FsR, using up all the fasteners, what is the ratio mass of Fs composed in the compound FsR ?
Answer: Fs/ FsR-Fs = 10/4 = 2.5
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What new technology made possible the discovery and isolation of four members of the noble gases family in the late nineteenth century?
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Answer: Fractional distillation at very low temperatures
How many valence electrons does Oxygen have? What is the charge?
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Answer: 2 and the charge is negative
Where are the metals, non metals and metalloids located?
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Answer: metals are located are located to the left of the zig-
zag, non-metals to the right and on the zig-zag are metalloids.
Answer: alkali, alkaline Earth metals, transition metals, boron,
carbon, nitrogen, oxygen, halogen, noble gases. At the bottom actinides and lanthinides
List the families from left to right.
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Draw the energy level for Argon?
Answer:
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Answer: A = nucleus B = neutron C = proton D = Electron cloud
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.
Label the parts to the equation.
2H2O 4HO2
Answer: 1 = reactant 2 = coefficient 3 = yield 4 = subscript 5 = product
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400Count the elements in the equation:
NaHCO3 + HCl → NaCl + H2CO3
Answer: Each side has 2 = sodium 2 hydrogen 1 carbon and
3 oxygen demonstrating a conservation of mass.
What is the role valence electrons?How many valence electrons does
Nitrogen have
Answer: Outer electrons allow interaction between elements to bond and nitrogen has 3
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Create a dot diagram for Carbon
Answer: C add four dots around it
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The number shown on the top part of each of the element squares in a periodic table is the ______.
Answer Atomic number
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What do you call vertical columns of the periodic table and the location horizontally?
Answer: Family or group/ Period
.
The elements in the modern periodic table are arranged in increasing order of ________ .
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Answer: Atomic number
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The scientist who developed the periodic table to predict the properties of unknown elements.
Answer: Mendeleev
100When a solution of Silver iodide (AgI2) was electrolyzed, silver appeared at
the negative electrode and iodide appeared at the positive electrode. What do you expect will appear at the two electrodes if a solution of Zinc chloride (ZnCl2) is electrolyzed?
Answer: Zinc because it’s a metal will go to the negative electrode to chlorines positive
electrode. Pay attention to the charge on the valence electron.
.
Negative electrode Positive Electrode
A hydrogen oxygen
B Zinc chlorine
C hydrogen chlorine
D Oxygen Chlorine
E chlorine Zinc
200Calcium (Ca) is in the second column in the periodic
table and is classified as an alkaline earth metal. What do you expect to be the combining ratio of a compound of calcium and bromine (Br) as expressed by a formula?
Answer: CaBr2
300Chlorine (Cl) is below fluorine in the halogen
column. If you could make a compound of chlorine with lithium (Li), which pair of compounds do you predict would be formed?
Answer: LiCl
400I. Hydrogen combines with chlorine in the same atomic ratio as sodium.
II. In electrolysis, hydrogen is collected at the negative electrode.
III. Hydrogen is a gas at room temperature.
IV. Hydrogen forms diatomic molecules
Which of the above statements supports placing hydrogen in the first column of the periodic table?
Answer: I and II (alkali metals are solids and hydrogen is the only one that is diatomic in this family.
Answer: III, IV reacts similar to the halogen groups
500I. Hydrogen combines with chlorine in the same atomic ratio as sodium.
II. In electrolysis, hydrogen is collected at the negative electrode.
III. Hydrogen is a gas at room temperature.
IV. Hydrogen forms diatomic molecules
Which of the above statements supports placing hydrogen in the seventh column of the periodic table?
Oxygen and selenium are placed in the same column of the periodic table. Below are four correct statements about their properties. Which of these statements support this placement and which do not?
I. There is a compound SeO3 but no compound Se3O.
II. The elements to the immediate right of the oxygen and selenium belong to the halogen group.
III. Oxygen is a gas at room temperature, but selenium is a solid.
IV. Both oxygen and selenium combine with hydrogen in the same ratio: H2O and H2Se.
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Answer: support II and IV and does not support I and III
Which of these properties argue against placing zinc in the periodic table as shown in the figure?
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Answer: III because the atomic number should fit between Ca and Kr
KPotassium
39.1 UNegative electrode
KCl
CaCalcium40.1 U
Negative electrode
CaCl2
ZnZinc
65.4. UNegative electrode
ZnC2
l
KrKrypton83.8 u None I. In electrolysis, it moves to
the negative electrode.II. It combines with chlorine in a 1:2 ratio.III. Its atomic mass 65.4
Carbon (C), is in the fourth column of the periodic table, and aluminum (Al) is in the third column. Both elements combine readily with fluorine (F), a halogen. What compounds would you expect to be formed when Carbon and aluminum combine with fluorine?
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Answer: CF4 and AlF3
400Although the atomic mass of iodine is less that of tellurium, iodine is placed to the right of
tellurium in the period table. (See the figure below.)
Which of the following arguments support this placement of these two elements in the periodic table?
I. The placement keeps the halogen in the same column.
II. Tellurium and selenium combine in the same atomic ratios with oxygen and hydrogen.
III. The atomic mass of tellurium differs by only 0.7 u from the atomic mass of iodine.
Answer: I, II, and III
SeSelenium
79.0 u
BrBromine
79.9 u
KrKrypton83.8 u
TeTellurium
127.6 u
IIodine
126.9 u
XeXenon131.3 u
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As shown in the figure below, copper has the following properties:
I. In electrolysis, it moves to the negative electrode.
II. It combines with chlorine in both a 1:1 and a 1:2 ratio of atoms.
III. Its atomic mass is 63.5 u.
Which of these properties can be used to argue against placing copper in the periodic table in either position shown in bold black in the figure?
Answer: II and III
KPotassium
39.1 uNegative electrode
KCl
CaCalcium40.1 u
Negative electrode
CaCl2 Cu
Copper63.5 u
Negative electrode
CuCl, CuCl2
CuCopper63.5 u
Negative electrode
CuCl, CuCl2
Kr
Krypton
83.8 u
None
