« previous next »

Author Question: What is the valence shell and number of valence electrons for Lead? (Read 1474 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?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar
Chicken egg without its shell Chicken egg without its shell
The number of research articles published on the topic of religious practices and spirituality have ... The number of research articles published on the topic of religious practices and spirituality have ...
Lead Displaces Iron Lead Displaces Iron
Drawings depicting mitosis in an animal cell with a diploid number of 4 Drawings depicting mitosis in an animal cell with a diploid number of 4
An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ... An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ...
Video: Introduction to filtration - filtrate formation and composition

For a complete list of videos, visit our video library