What is the electronic configuration of lithium, which has 3 electrons?, 1,2, 2,1, 3, 1,1,1, How many electrons are present in an atom with the electronic configuration 2,8,7?, 17, 7, 2, 8, What is the maximum number of electrons in the first shell?, 8, 18, 1, 2, For the first 20 elements, what is the maximum number of electrons placed in the second shell?, 2, 4, 8, 18, Which electronic configuration represents a noble gas?, 2.8.1, 2.8.6, 2.8.8, 2.8.7, An element has the electronic configuration 2,8,3. In which group is it found?, 2, 8, 3, 13, Which feature determines the group number of a main-group element?, The number of occupied shells, The total number of neutrons, The number of protons and neutrons, The number of outer-shell electrons, An element has seven electrons in its outer shell. Which group does it belong to?, Group 2, Group 7, Group 1, Group 5, Which electronic configuration represents a Group 2 element?, 2, 2,8,2, 2,1, 2,8, An element in Group 6 usually has how many outer-shell electrons?, 2, 6, 1, 7, Which feature determines the period number of an element?, The number of protons, The number of occupied electron shells, The number of outer-shell electrons, The number of neutrons, An element has the electronic configuration 2,8,5. In which period is it found?, Period 2, Period 8, Period 5, Period 3, Which electronic configuration belongs to an element in Period 2?, 2,8,5, 2,5, 2,8,2, 2,8,8,1, An element is in Period 4. How many occupied electron shells does it have?, 1, 2, 3, 4, An element has two occupied electron shells and one outer-shell electron. Where is it located?, Group 1, Period 2, Group 2, Period 1, Group 1, Period 3, Group 2, Period 2

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