For example, sulfur is commonly known to have a standard atomic weight of 32.065. However, its actual atomic weight can be anywhere between 32.059 and 32.076, depending on where the element is found.

For the first time in history, a change will be made to the atomic weights of some elements listed on the Periodic table of the chemical elements posted on walls of chemistry classrooms and on the ...

For example, Hydrogen, with an atomic number of 1, comes first, followed by helium (atomic number 2), and so on. Rows in the periodic table are called periods.

For example, sulfur is commonly known to have a standard atomic weight of 32.065, but its real atomic weight can be anywhere between 32.059 and 32.076, depending on where the element is found.

Why do the atomic weights on the periodic table keep changing? Kit Chapman meets the team behind the decimal places ...

The periodic table is one of the triumphs of science. Even before certain elements had been discovered, this chart could ...

But the periodic table contains still more; the heaviest so far is element 118, oganesson, a “super-heavy” element with 118 protons and a half-life of half a millisecond.

The elements, discovered by researchers from Japan, Russia, and the United States, are known by their atomic numbers of 113, 115, 117, and 118. They will be given permanent names soon, according ...

Related: New element confirmed for periodic table These super-heavy elements, which include all the elements beyond atomic number 104, are not found naturally on Earth, and thus have to be created ...

Scientists at the Japan Atomic Energy Agency have studied lawrencium for first time. The radioactive element is extremely difficult to make and has a half-life of just 27 seconds.

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, atomic weight and the broad group they live in. It's no mean feat, the ...