An element has the electron configuration [Kr] 5s24d105p2. The element is a(n?


transition element




5 Answers

  • Duncan
    1 month ago

    Kr has 36 electrons in the configuration [Ar] 3d10 4s2 4p6.

    This element has 5s2 4d10 5p2 or 14 more electrons.

    In a neutral state an element with 50 electrons would also have 50 protons making it Sn or tin.

    Tin indeed does have this configuration.

    It’s certainly not a lanthanide or actinide as they are larger – more p and e

    It’s not a transition metal as they have unfilled d orbitals

    That leaves metal like tin or a nonmetal nearby that have incomplete p orbitals.. It’s not a nonmetal as they are smaller – less p and e

    So ANSWER is METAL – Sn or tin

  • heyner
    4 days ago

    you’re to apply the noble gas on the line above the factor which you’re doing the configuration for. consequently, utilising basically any factor would be incorrect. Noble gases are used by way of fact their shells are finished. by way of fact their shells are finished, they can not earnings anymore electrons. they’re good components. while utilising the noble gas listed formerly the factor, that noble gas by way of fact an identical electron configurations each and every time. consequently, utilising that to initiate with yields the right same initiating each and every time by way of fact it can not have a distinctive one. i’m hoping that facilitates! I hated chemistry in college….blah!

  • ?
    1 month ago

    Sn: Metal

  • ?
    1 month ago


  • Jose
    5 days ago


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