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Atomic Number and Mass Number of Elements: Atoms are the building blocks of matter. They are responsible for the format of all living and non-living things. Understanding their molecular structure and ...

Michael R. Topp, professor of chemistry at the University of Pennsylvania, explains. Although some of the symbols on the periodic table may seem strange, they all make sense with a little background ...

First 20 Elements Of The Periodic Table: The atomic number and symbols are important in chemistry. The atomic number of elements gives us an idea about the atomic structure of elements, such as how ...

If you've learned all the elements from actinium to zirconium, it's time to head back to the periodic table, where there's a new, extremely heavy element in town. In case you forgot your high school ...

Researchers have come one step closer to understanding unstable atomic nuclei. Scientists have now provided evidence for a new nuclear magic number in the unstable, radioactive calcium isotope 54Ca.

At the far end of the periodic table is a realm where nothing is quite as it should be. The elements here, starting at atomic number 104 (rutherfordium), have never been found in nature. In fact, they ...