Chemistry Help Please!

At most, how many 4d electrons can an atom have? Of these what is the maximum number that
can have ms= -1/2?

A 5f electron has what value of quantum number l? What values of ml may it have?

Also please explain how you got the answers so I can understand?

Thank you so much!

  1. 👍 0
  2. 👎 0
  3. 👁 1,048
  1. To do these you need to know the rules and that will do it.
    n can have any whole number from 1 --- to infinity.
    l(ell) has integral values of 0 to n-1; i.e., 0,1,2,3,....n-1
    msubl is -ell to +ell as min to max with inters between, including zero.
    msubs can have -1/2 or +1/2 only.

    n = 1
    So ell can be zero only.
    msubell = 0
    msubs = -1/2 or =+1/2

    The s orbital has ell = 0
    The p orbital has ell = 1
    The d orbital has ell = 2
    The f orbital has ell = 3

    The number of orbitals is 2*(ell)+1 which means there is only 1 s orbital; i.e.k (2*0 + 1) = 1
    Likewise, there are 3 p orbitals, 5 d orbitals, 7 f orbitals
    Each orbital can hold a maximum of 2 electrons; one will have +1/2 spin and the other -1/2 spin.
    So your question about the 4d orbitals. There are 5 4d orbitals, each may have 2 electrons, so if the 4d orbitals are completely filled you may have as many as 10 electrons. Since one of those electrons in each "box" is +1/2 and the other is -1/2, you may have as many as 5 4d orbitals with ms = -1/2.

    I'll leave the 4f question for you. Please follow up if you don't understand and ask specific questions. I know this can be confusing but you have ab out 3 or 4 rules; knowing those rules lets you handle any of these questions.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. chem

    There are eight markers in a full set, but Flora and Frank each only have seven markers.Flora is missing the red marker, and Frank is missing the blue marker.What can they do so that each has a full set of markers? * steal the

  2. Chemistry

    1) The letter "p" in the symbol 4p^3 indicates the ___. A) spin of an electron B) orbital shape*** C) principal energy level D) speed of an electron 2) If the spin of one electron in an orbital is clockwise, what is the spin of

  3. Chemistry

    Hi. Is PO4(3-) polar or non-polar? Why or why not? Thanks! Look up the electronegativity of P and O. I think I remember that O is about 3.5 and P is about 2.1; therefore, each P-O bond is somewhat polar. Thus, the ion will be

  4. Science!

    Which is most likely to be part of an ionic bond? A. An atom with no valence electrons B. An atom with one valence electron C. An atom with two valence electrons D. An atom with three valence electrons Is the answer B?

  1. chemistry

    Give the maximum number of electrons in an atom that can have these quantum numbers. 1. n = 3, ℓ = 2, mℓ = -1, ms = 1/2 2. n = 2, ℓ = 1, mℓ = -1, ms = -1/2

  2. 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

  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

  4. Science--HELP!!

    Can you please check my answers: 1. Dalton's idea that atoms cannot be divided into smaller parts was disproved by the discovery of _________ (electrons?) 2. The description of the structure of the atom is called ______ (atomic

  1. chemistry

    A sodium atom when excited gives off two very specific wavelengths of visible light. What does this tell us about sodium? A. There are two principal electron transitions in sodium. B. There are two electrons in a sodium atom. C. A

  2. Chemistry

    which atom has the least attraction for the electrons in a bond between that atom and an atom of hydrogen? (1) carbon (2)nitrogen (3)oxygen (4) fluorine

  3. chemistry

    According to the octet rule a calcium atom has a tendecy to.? Look at Ca on the periodic table. It is in group 2 (or IIA depending upon the system your teacher is using). That tells you that it has two electrons in its outer shell

  4. chemistry

    Given the shell model of the atom, suggest a possible reason that Lewis proposed a maximum of two electrons for hydrogen and a maximum of eight electrons for carbon, nitrogen, oxygen, and fluorine.

You can view more similar questions or ask a new question.