How do you know how many valence electrons an element has?

Author Question: How do you know how many valence electrons an element has? (Read 483 times)

notis

Hero Member
Posts: 596

on: Sep 20, 2013

I am in Integrated Physics and Chemistry and we are learning about the elements and bonding. So could someone please explain valence electrons to me?

TI

Sr. Member
Posts: 434

Reply #1 on: Sep 20, 2013

the column its in on the periodic table. for example if an element is in the third column it has 3 valence electrons. also if it has, for example, 17 valence electrons it would be in the 7th column

Need homework help now?

Ask unlimited questions for free

Ask a Question

« previous next »

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.