All the elements in the Periodic Table are made from different atoms, and the structure of these atoms results in a gamut of phenomena from radioactive decay to nuclear power.

The number of protons in one atom of an element is its atomic number. Hydrogen has one proton, so its atomic number is one. Carbon atoms have six protons, so its atomic number is six.

Atomic Number and Atomic Mass: Get here the easy notes on atomic number and atomic mass for all the first 30 elements. Know how to calculate atomic mass using atomic number.

Atoms of the same element with different numbers of neutrons are called isotopes of that element. The atomic mass in the periodic table is an average of the atomic mass of the isotopes of an element.

The hibakusha, or survivors of the atomic bombings, are entitled to medical care and may receive allowances. Read more at ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

AN important result of the development of Moseley's atomic number rule has been the impetus it has given to the search for missing elements. It is true that later arrangements of the Periodic ...

How an atomic nucleus can have two different shapes with only slightly different energy levels by Eric Gedenk, Michigan State University Facility for Rare Isotope Beams ...

If you would like to learn more about the IAEA’s work, sign up for our weekly updates containing our most important news, multimedia and more. Uranium is a naturally occurring radioactive element, ...

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 ...

All the latest science news on atomic number from Phys.org. Find the latest news, advancements, and breakthroughs.

Aluminum is a metal in group IIIA of the periodic table with atomic number 13, an atomic weight of 26.982, and a density of 2.70. It has a melting temperature of 660 C. The electronic configuration of ...