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Quiz von Elizabeth Nguyen, aktualisiert more than 1 year ago
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Erstellt von Elizabeth Nguyen
vor fast 7 Jahre
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Frage 1
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The atomic mass in the periodic table is highest in the
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upper left corner
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upper right corner
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lower left corner
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lower right corner
Frage 2
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Which element has the highest atomic mass?
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copper (atomic number 29)
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gold (atomic number 79)
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platinum (atomic number 78)
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silver (atomic number 47)
Frage 3
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In the periodic table, metals are best described as located
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on the left side
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on the right side
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in the first two rows
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in the last two rows
Frage 4
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In the periodic table, which column (group) contains the most halogens?
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1A
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2A
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7A
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8A
Frage 5
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The electronegativity of an element indicates the relative ability of its atoms to attract electrons in a chemical bond. According to the graph, as you move across a period on the periodic table, the atomic number
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increases and the electonegativity increases
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increases and the electonegativity decreases
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decreases and the electonegativity increases
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decreases and the electonegativity decreases
Frage 6
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The ionization energy of an element indicates the energy it takes to remove an electron from the outermost level. As you move down a group in the periodic table, the ionization energy
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decreases because the electron is farther from the nucleus
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increases because the number of protons increases
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decreases because the number of neutrons increases
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increases because of the size of the atom increases
Frage 7
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How many electrons does the element found in the second row and second column of the periodic table have available for bonding?
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0
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1
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2
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4
Frage 8
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Why are the elements in column 17 of the periodic table have in the outer shell?
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They have only one electron in their outer electron shells, so they frequently form singly charged positive ions
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They have only two electrons in their outer shells, so they frequently bond with doubly charged negative ions.
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They need only two electrons to complete their outer shells, so they easily bond with doubly charged positive ions.
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They need only one electrons to complete their outer shells, so they easily bond with many types of elements
Frage 9
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Which part of the atom has the least amount of mass?
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first s orbital
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neutrons
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nucleus
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protons
Frage 10
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An atom
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is much larger than its nucleus
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is much lighter than its nucleus
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is much denser than its nucleus
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has a higher positive charge than its nucleus
Frage 11
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Where are the lanthanide and actinide elements located on the periodic table?
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the first row
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the first two rows
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two rows normally shown as in insert
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the middle columns
Frage 12
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Which elements are not found naturally?
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actinide elements
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lanthanide elements
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transuranium elements
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uranium elements
Frage 13
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In the periodic table, which block represents the d sublevel?
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W
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X
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Y
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Z
Frage 14
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An atom with the electron configuration
1s^2 2s^2 2p^4 is most likely
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a metal that forms a positive ion
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a metal that forms a negative ion
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a nonmetal that forms a positive ion
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a nonmetal that forms a negative ion
Frage 15
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Robert Millikan dropped negatively charged oil droplets inside and outside an electric field to see
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if oil drops fell faster than electrons
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if oil drops fell faster than protons
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how their rates of falling would be affected by a positively charges plate
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if negatively charged particles were attracted to a positively charged plate
Frage 16
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Albert Einstein proposed that electromagnetic energy is contained in
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electrons
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photons
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protons
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quarks
Frage 17
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The Bohr model of the atoms was also known as the
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balloon model
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igeneous rock model
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planetary model
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plum pudding model
Frage 18
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Niels Bohr's model of the atom helped to explain
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particles passing through foil
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spectral lines
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the formation of isotopes
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the properties of hydrogen
Frage 19
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The figure below shows the bright line spectra of four elements and a spectrum from a star. According to the spectrum, which elements are present in this star?
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elements A and B
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elements B and C
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elements A and C
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elements B, C, and D
Frage 20
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Based on the equation E=hv, which is not a possible value for an energy change?
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hv
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2hv
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2^2hv
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6.626hv
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