1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Periodic table - certain no. of atoms in the 1st 4 rows

  1. Jan 2, 2017 #1
    1. The problem statement, all variables and given/known data
    Explain why the first four rows of periodic table have 2, 8, 8 and 18 atoms respectively

    2. Relevant equations
    I have a feeling this has something to do with the central field approximation OR the s, p, d, f orbitals and how many electrons can go in each OR something else

    3. The attempt at a solution
  2. jcsd
  3. Jan 2, 2017 #2


    User Avatar
    Science Advisor
    Homework Helper
    2017 Award

    Hello Ivana, :welcome:

    What is the context of your question ? Did you learn about the subjects that you have a feeling have to do with this exercise ?
    How may electrons can go in an s orbital ? And in a p orbital ?

    PS PF guidelines require a real attempt at solution, i.e. a bit more than "a feeling". So pick one and work it out ! :smile:

    PS I'm sorry to see your first thread petered out altogether...
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted