« previous next »

Author Question: What are the Valence Electrons of all the Elements in the Periodic Table? (Read 749 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?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

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

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Drugs and their effect table Drugs and their effect table
Drugs and their effect table Drugs and their effect table
Electron configuration and how many electrons are needed to achieve the nearest noble-gas ... Electron configuration and how many electrons are needed to achieve the nearest noble-gas ...
(a) Graph for converting values to p values. (b) Table of values for selected values of df (a) Graph for converting values to p values. (b) Table of values for selected values of df
table table
Table - Correlation Analysis Table - Correlation Analysis
Video: Optic Nerve and Optic Disk Animation (Part 1 of 2)

For a complete list of videos, visit our video library