« previous next »

Author Question: What is the valence shell and number of valence electrons for Lead? (Read 771 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?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Some playgrounds near streets with heavy traffic may still have high levels of lead from gasoline ... Some playgrounds near streets with heavy traffic may still have high levels of lead from gasoline ...
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 ...
The distribution of the number of hours that a random sample of people spend doing chores per ... The distribution of the number of hours that a random sample of people spend doing chores per ...
Human Diseases Associated with Copy Number Variants Human Diseases Associated with Copy Number Variants
Directions: Fill in the correct number or word(s). Order: Lantus U-100 insulin 68 units subcut ... Directions: Fill in the correct number or word(s). Order: Lantus U-100 insulin 68 units subcut ...
Number line (5 - 1) Number line (5 - 1)
Video: SNP Polymorphysim Microarray Chip - How to Test a Person's DNA

For a complete list of videos, visit our video library