Explain to students that two protons repel each other and that two electrons repel each other. But a proton and an electron attract each other. Another way of saying this is that the same or “like” ...

Neptunium is sandwiched on the periodic table between uranium and plutonium, which are also radioactive. All three of these elements, named after planets, have between 92 and 94 protons in their ...

Discovery of protons Throughout most of the 19th century, it was thought that atoms were the smallest and most basic building block of all matter, but as that century neared its end, the evidence ...

We know how to accelerate electrons, positrons, and protons in a straight line. We know how to bend them into a circle, and maximize both the energy of the collisions and the number of particles ...

Magic numbers In 1949, Goeppert Mayer and Jensen developed the so-called shell model of the nucleus. Protons and neutrons occupy particular orbits, analogous to electrons, but they also have a ...

“We know the advantage of protons are clear, but we know that the uptake of protons after 40 years is only 1–2% of the patients in our country that we treat with radiotherapy. It’s very unlikely ...

The compounds they've studied are made out of elements in the actinide series, including neptunium and plutonium. In these materials, active electrons are in "f-orbitals." ...

The researchers shot high-energy electrons at carbon, aluminum, iron, and lead. These atoms increase the ratio of neutrons to protons from 1.0 (no excess neutrons) in carbon to 1.5 (lots and lots ...

For the first time, researchers have reported a 3D metal-organic framework (MOF) that can conduct both electrons and protons (J. Am. Chem. Soc. 2024, DOI: 10.1021/jacs.4c13792). Materials mixing ...

Previously, scientists have demonstrated the potential of plasma accelerators by speeding up electrons using waves set off by a laser or by another beam of electrons, instead of protons (SN: 5/8 ...

American Chemical Society: Chemistry for Life.A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.