« previous next »

Author Question: What are the Valence Electrons of all the Elements in the Periodic Table? (Read 804 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?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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.

Important Trace Elements in the Body Important Trace Elements in the Body
Leaning against a table with a pillow for support. Leaning against a table with a pillow for support.
Standing at the side of the table facing the head, mobilize the scapula by pressing along medial ... Standing at the side of the table facing the head, mobilize the scapula by pressing along medial ...
table table
Short Table of Laplace Tranforms Short Table of Laplace Tranforms
Core-promoter elements found in focused promoters Core-promoter elements found in focused promoters
Video: The primary factors that affect circulation - MABP, CO and SVR

For a complete list of videos, visit our video library