« previous next »

Author Question: What is the valence shell and number of valence electrons for Lead? (Read 1282 times)

ricki

  • Full Member
  • ***
  • Posts: 200
on: Sep 20, 2013
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
Reply #1 on: Sep 20, 2013
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
« previous next »
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc
The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p
Prolonged abuse leads to production of stress hormones that can lead to a cascade of effects ... Prolonged abuse leads to production of stress hormones that can lead to a cascade of effects ...
Number Facts Number Facts
The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ... The minimum number of moles of oxygen needed to completely consume 4 moles of C3H8O is ...
DNA Hypermethylation of Number of Known Genes DNA Hypermethylation of Number of Known Genes
Video: The 4 steps of translation Animation

For a complete list of videos, visit our video library