Who discovered that atoms have atomic numbers?

Answer The discovery of atomic numbers is credited to Henry Gwyn-Jefferies Moseley, in around 1914. Although the idea of an "atomic number" had already existed at the time of Moseley's work, the X-ray spe... Read More »

Top Q&A For: Who discovered that atoms have atomic numbers

Who created the Periodic Table based on atomic numbers?

Dimitri Mendeleev (1834-1907) is credited as the inventor of the Periodic Table of the Elements. Henry Mosely, an English physicist, refined and improved the table in 1914 by basing it on atomic nu... Read More »

Where on the Periodic Table is the atomic number and atomic mass located?

The Periodic Table of Elements is composed of all the known elements of the natural world, listed in order of increasing atomic number. Most charts list each atom in rows of boxes with the element'... Read More »

Are the numbers on the back of the Social Security card the routing numbers for the Federal Reserve?

Newer cards issued by the Social Security Administration have a red number printed on the back. Rumors state that these numbers signify a routing or account number within the Federal Reserve bankin... Read More »

How do I Stop a Browser from Displaying Skype Numbers Instead of Normal Phone Numbers?

Skype is an instant messenger service that also allows you to make phone calls and video calls. When you install Skype, it comes bundled with the Skype browser add-in. One of the features is that i... Read More »