Electrons and the Periodic Table – Flashcards
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Which shows the electron configuration for zinc (Zn)?
answer
[Ar]4s23d10
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In which block of the periodic table is chromium (Cr) found?
answer
d block
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Which of the following elements has the fewest valence electrons?
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lithium
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How many valence electrons does lithium (Li) have available for bonding?
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NOT:
2
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Which is the noble-gas notation for lead (Pb)?
answer
[Xe]6s24f145d106p2
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The electron configuration of nitrogen (N) is
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1s22s22p3
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Which statement best describes how electrons fill orbitals in the periodic table?
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Electrons fill orbitals in order of their increasing energy from left to right.
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It is easier to determine the electron configurations for the p-block elements in periods 1, 2, and 3 than to determine the electron configurations for the rest of the p-block elements in the periodic table because
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NOT:
they have a larger number of core electrons
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Which element does the electron configuration 1s22s22p2 represent?
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C
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Arsenic does not have any valence electrons in the 3d orbital because
answer
its 3d orbital is completely filled
