« previous next »

Author Question: What are the Valence Electrons of all the Elements in the Periodic Table? (Read 593 times)

leilurhhh

  • Hero Member
  • *****
  • Posts: 560
on: Sep 20, 2013
I need help in Chemistry and I don't know how to determine all the valence electrons in the periodic table.

I need the equation or explanation on how to find it and give me all the answers to every element


mydiamond

  • Hero Member
  • *****
  • Posts: 804
Reply #1 on: Sep 20, 2013
The number of valence electrons is given by the GROUP NUMBER which runs along the top of the periodic table. Oxygen, in group VIA, for example, has 6 valence electrons. Magnesium, in group IIA, has 2.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

tth

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Sep 20, 2013
Group number will generally tell you how many valence electrons in the element. All of the elements in a single group will have an identical number of valence electrons. All of the Group 18 elements (noble gases) will have full outer main energy levels, thus no valence electrons. Transition metals will always have 2 valence electrons.


« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Summary of the Elements of a Swedish Massage Session Cont. Summary of the Elements of a Swedish Massage Session Cont.
Standing at the head of the table, apply oil or lotion to the entire back and shoulders with ... Standing at the head of the table, apply oil or lotion to the entire back and shoulders with ...
table table
table table
What is the total number of valence electrons in a silicate ion, SiO32-? What is the total number of valence electrons in a silicate ion, SiO32-?
Table - Correlation Analysis Table - Correlation Analysis
Video: Introduction to Eating Disorders

For a complete list of videos, visit our video library