Chemistry

Name an element that has 5 electrons in the third energy level. How do i determine the third energy level

Row three on the periodic table is third energy level

If memory serves me will, it begins with sodium.

Ok. iS Krypton the electron configuration that ends in 4s2, 4p5
I think its (kr)

Krypton is NOT that configuration, it is a member of the Nobel gas family, s2p6

What electron configuration ends in 4s2,4p5?

If Kr ends in 4s2 4p6, then 4s2 4p5 must be the element BEFORE Kr and you would expect to find that element in group VIIA. But your original question was an element with 5 electrons in the third energy level. That will be 3s2 3p3 and I would expect that element to be found in group VA.

  1. 👍 0
  2. 👎 0
  3. 👁 142
asked by Bryan

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemisty

    Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p3. A. What is the symbol for this element? B. What is the atomic number of this element? C. How many unpaired electrons does an atom

    asked by Joe on October 20, 2013
  2. Chemisrty

    Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1. A. What is the symbol for this element? B. What is the atomic number of this element? C. How many unpaired electrons does an

    asked by Kristen on October 20, 2013
  3. Chem help

    Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1. A. What is the symbol for this element? B. What is the atomic number of this element? C. How many unpaired electrons does an

    asked by Lena on October 17, 2012
  4. Chemisty

    how do you determine how many electrons are in the highest occupied energy level? For example many electrons are in the highest occupied energy level Group 3A Count them up. For example, you know 1s2, 2s2, 2p6, 3s2, 3p6, etc etc.

    asked by Bryan on October 31, 2006
  5. chemistry

    Which of following statements correctly describes energy levels? A. Electrons can never move to a higher or lower energy level. B.In it's outermost energy level, oxygen has 4 valence electrons. C. The second energy level holds a

    asked by Yui on August 23, 2014
  6. chemistry

    which of the following statements correctly describes energy levels? A. Electrons can never move to a higher or lower energy level. B. In its outermost energy level, oxygen has 4 valence electrons C. The Second energy level holds

    asked by Hideko on September 6, 2014
  7. chemistry

    Which of the following statements correctly describes energy levels? A. Electrons can never move to a higher or lower energy level. B. In its outermost energy level, oxygen has 4 valence electrons C. The second energy level holds

    asked by Emiko on September 2, 2014
  8. Chemistry

    An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1? 2 ev 4 ev 8

    asked by bigurl1.4 on October 31, 2013
  9. Biology

    These are true and false questions and I want to be sure of my answers. Please someone check. Thanks: The eight-element periodicity found in the Periodic Table is related to the number of electrons in the outermost energy level of

    asked by Cad on September 3, 2011
  10. Biology

    These are true and false questions and I want to be sure of my answers. Please someone check. Thanks: The eight-element periodicity found in the Periodic Table is related to the number of electrons in the outermost energy level of

    asked by Cad on September 3, 2011

More Similar Questions