{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

This is due to additional attraction this is due to

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: re added further Because electrons are added further Because Because ffrom the nucleus, there is less rom the nucleus, there is less attraction. This is due to additional attraction. This is due to additional energy levels and the shielding effect.. energy levels and the shielding effect shielding shielding Each additional energy level “shields” Each additional energy level “shields” tthe electrons from being pulled in he electrons from being pulled in toward the nucleus. ttoward the nucleus. toward oward •• Size goes DOWN on going across a Size goes DOWN on going across a period. period. period. period. 70 Atomic Size Atomic Size Size decreases across a period owing Size decreases to increase in the positive charge from the protons. Each added electron feels a greater and greater + charge because the protons are pulling in the same direction, where the electrons are scattered. scattered. Large Small 71 Which is Bigger? • Na or K ? • Na or Mg ? • Al or I ? 72 Ion Sizes Ion Sizes Li,152 pm 3e and 3p Does th...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern