Author Question: What is the valence shell and number of valence electrons for Lead? (Read 1407 times)

ricki

  • Full Member
  • ***
  • Posts: 200
I think the valence electrons is 4 and the shell is 6 but I'm not 100% sure if that s right. If it is can someone explain to me why? It would really help me for a big test tomorrow.



mia

  • Hero Member
  • *****
  • Posts: 564
Yes you are absolutely right.

First of all, it's shell 6 because lead, Pb 82 is located on the 6th row.

It has a valence electron of 4 because if you count from left to right, it happens to be the forth one.

Note: transition metals (columns 3-12) are often skipped because they are unpredictable.

So skipping the transition metals, start out with
Cs, 55  -----> 1 VE
Ba, 56  -----> 2 VE
Ti, 81   -----> 3 VE
Pb, 82  -----> 4 VE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

For a complete list of videos, visit our video library