However an element's mass number close mass number The total number of protons and neutrons found in the nucleus of an atom. can vary, which means that it can have different numbers of neutrons ...

First, let's explore the atom's architecture. Formed from a cluster of protons and neutrons at the center of an atom, a nucleus is 10,000 times smaller than the atom as a whole, "like a fly in a ...

The invisible dark matter is one of the universe's biggest mysteries, and its existence is confirmed only by the ...

An atom consists of a heavy center, called the nucleus, made of particles called protons and neutrons. An atom has lighter ...

Many heavy atoms form from a supernova explosion, the remnants of which are shown in this image. NASA/ESA/Hubble Heritage ...

While gluons are responsible for generating most of the visible mass in the universe, their role inside nuclei remains poorly ...

Together with results by some nuclear mass models (denoted by pink block), calculations suggest that the isospin asymmetry of heavy nuclei at the neutron drip line tends toward a saturation value ...

The study is part of Kokkonen's doctoral thesis and a direct scientific follow-up to her master's thesis, in which she discovered a new type of atomic nucleus, the 190-astatine. The thesis article ...