Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi test

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

MATLAB Academy

New to MATLAB?

Learn MATLAB today!

Problem 480. Aufbau principle

Created by AMITAVA BISWAS

Given the order e=[1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p], find a vector x with these conditions:

  1. sum(x)==sumofx
  2. length of x is the shortest possible
  3. x has positive integers only
  4. if e(k) contains s,p,d,f,g, then x(k) must be less than 3,7,11,15,19, respectively
  5. if x(k+1)>0 then x(k) must be maximum possible.

For example, if sumofx=3 then x=[2 1]. Return x embedded in e in the following style: electrons='1s2,2s1'. Please see more info: Aufbau Principle, Electron Shell.

Tags

Problem Group

Solution Statistics

26 correct solutions 20 incorrect solutions
Last solution submitted on May 11, 2016

Problem Comments