Through these activities, students will be introduced to some of the characteristics of electrons, protons, and neutrons, which make up atoms. Objective Students will be able to explain, in terms of ...

Neutrons are neutral, as its name implies. A stable atom has a net charge of 0. In other words, it has an equal number of protons and electrons. The positive protons cancel out the negative electrons.

This illustration of the nuclear landscape shows atomic isotopes arranged by an increasing number of protons (up) and neutrons (right). The dark blue blocks represent stable isotopes, while the ...

When a nucleus has a magic number of protons or neutrons, then the particular orbit is filled, and the nucleus is not very reactive, similar to the noble gases.

In noble gases, the electrons occupy completely filled orbits, and as a result the atoms greedily hold onto their electrons instead of sharing and undergoing a chemical reaction. In the 1930s, ...

Protons are tiny subatomic particles that, along with neutrons, form the nucleus of an atom. The heavier the atom, the more protons (and neutrons) it contains.

The number of protons in an atom is referred to as the atomic number of that element. The number of protons also determines the chemical behavior of the element.

In the first direct probes of the core of the nuclear interaction, researchers find that leading theories on interactions between protons and neutrons describe them well, even in conditions where the ...