Advertisements

Electron Configurations of Atoms

An atom consists of a small, positively charged nucleus, surrounded by negatively charged electrons. We organize the electrons in a logical manner. As the atomic number increases, electrons are added to the subshells according to their energy. Lower energy subshells fill before higher energy subshells.

The order of filling is 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.

The periodic table can be used to help you remember the order.

Give the complete ground-state electron configuration for silicon

Give the ground-state electron configuration for silicon (Si) using noble-gas shorthand.

Give the actual ground-state electron configuration for copper (Cu) using the complete form.

Give the ground-state electron configuration for copper (Cu) using noble-gas shorthand.

Advertisements

About Rant4u

A Revolution in Social Networking

Posted on October 10, 2013, in Question and tagged , , , , , , , , . Bookmark the permalink. 1 Comment.

  1. 1s^2, 2s^2, 2p^6, 3s^2, 3p^2
    [Ne] 3s^2, 3p^2
    1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 3d^10, 4s^1
    [Ar] 3d^10, 4s^1

    Like

Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: