Quantcast Formation of Molecules - Fundamentals of X-Ray Physics

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
Figure 1-6. Atoms with 1 valence.
Molecules are formed of two or more atoms. Sharing of the outer valence
electrons often occurs among atoms during molecule formation. This sharing is
cemented by three kinds of bonds: the ionic or chemical bond, the convalent bond, and
he hydrogen.
a. Ionic Bond. An ionic bond is formed with the direct transfer of an orbital
electron from one atom to another in an electrostatic attraction. This type of valence,
call ionic polar valence, is common to the formation of many inorganic compounds. For
example, when a sodium atom and a chlorine atom are brought together, the single-
valence electron in the outer shell of the sodium atom is transferred to the chlorine atom
which has a "hole" in its outer shell and sodium chloride is formed (figure 1-7).
Figure 1-7. Ionic bond sodium chloride.

Medical News
Typically disregarded brain lesions may warn of heightened stroke risk
Scientists with the University of Mississippi Medical Center (UMMC) and...
A look at aging and longevity in this “unprecedented” time in history
Keynote talks and presentations from the 2015 Big Data in...
New blood pressure guidelines may lead to under treatment of older adults
Approximately one-third of U.S. adults have hypertension (or high blood...
Lampedusa's Medic to the Migrants
(MedPage Today) -- On a remote Mediterranean island, a hospital...
Years Since Birth Is Only a Crude Measure of Biological Age (CME/CE)
(MedPage Today) -- Same calendar age but a 34-year spread...
Framingham Risk Score Underestimates CVD Risk in PsA (CME/CE)
(MedPage Today) -- Patients may need early aggressive preventive treatment...
Brain imaging shows how children inherit their parents' anxiety
In rhesus monkey families - just as in their human...
Best friends may help poor kids succeed
(HealthDay)—Children who grow up in poor neighborhoods face more obstacles...
Researchers learn to measure aging process in young adults
Looking around at a 20th high school reunion, you might...
Less chemo for obese ovarian cancer patients linked to worse survival rates
(HealthDay)—Ovarian cancer patients who are overweight or obese are often...
Restraint and confinement still an everyday practice in mental health settings
Providers of mental-health services still rely on intervention techniques such...
Stress-fighting proteins could be key to new treatments for asthma
Investigators have discovered the precise molecular steps that enable immune...
TNF Inhibitors Spare the NSAIDs in Axial Spondyloarthritis (CME/CE)
(MedPage Today) -- 43% of patients completely discontinued NSAID treatment...
Vaccine for West Nile Virus enters human clinical trials
A clinical trial of a new investigational vaccine designed to...
Adolescents who view medical marijuana ads more likely to use the drug, study finds
Adolescents who saw advertising for medical marijuana were more likely...
Research team finds bacterial biofilms may play a role in lupus
Lupus, multiple sclerosis, and type-1 diabetes are among more than...
Link found between autoimmune diseases, medications, and a dangerous heartbeat condition
Mohamed Boutjdir, PhD, professor of medicine, cell biology, and physiology...
Is phosphate the next sodium?
Is phosphate the next sodium—a once seemingly benign food additive...
Women with epilepsy face elevated risk of death during pregnancy and childbirth – but why?
Women with epilepsy face a higher risk of death and...
Anti-vaccine trend has parents shunning newborns' vitamin shot
(HealthDay)—With the recent U.S. measles outbreak, the issue of vaccine...

Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +