You would look at the periodic table to find an atom that you could add 5 to its number of protons that would give you a sum close to the atomic mass given for that element. The answer is beryllium ...

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

First 20 elements of the periodic table: This article provides a comprehensive list of the first 20 elements in the periodic table along with their atomic numbers and symbols.

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.

GCSE Chemistry (Single Science) Atomic structure and the periodic table learning resources for adults, children, parents and teachers.

GCSE Combined Science Atomic structure and the periodic table learning resources for adults, children, parents and teachers.

Since the turn of the century, six new chemical elements have been discovered and subsequently added to the periodic table of elements, the very icon of chemistry. These new elements have high ...

Some asteroids are dense. So dense in fact, that they may contain heavy elements outside of the periodic table, according to a new study on mass density. The team of physicists from The University ...

A new version of the periodic table of elements has predicted hundreds of highly charged ions that could be used to create the next generation of optical atomic clocks. The periodic table, first ...

Since the turn of the century, six new chemical elements have been discovered and subsequently added to the periodic table of elements, the very icon of chemistry. These new elements have high ...

Oganesson, first synthesized in 2002 by bombarding californium-249 with calcium-48 atoms, has an atomic number of 118 and is the densest element in the periodic table.