What are the mysteries of dark matter and dark energy, and how might new subatomic particles or forces be involved in their explanation?

Why? Coulombic attraction is the attraction between oppositely charged particles. For example, the protons in the nucleus of an atom have attraction for the ... Discuss the relationships between matter, mass, elements, compounds, atoms, and subatomic particles · Distinguish between atomic number and mass number · Identify ... According to modern atomic theory, an atom has a nucleus, which is its center, or core. The nucleus contains subatomic particles: protons and neutrons. Protons ... Feb 8, 2019 ... At right is our current understanding of the various subatomic particles ... particles, called quarks, to form protons, neutrons, and atomic ... Jun 30, 2008 ... The key subatomic particles are electrons, protons and neutrons, which have specific masses and charges. Atoms are identified by their atomic ... Nov 28, 2023 ... For example, carbon-12 is a nuclide of carbon with 6 protons and 6 neutrons. This image shows how an atom is characterized in the periodic table ... Sep 14, 2021 ... An atom is about 10⁻10 m in size, while the nucleus, at 10⁻15 m, is 100,000 times smaller. To put this into perspective, if the nucleus were ... Hydrogen contains only a single proton and no neutrons. The number of protons in an atom determines its atomic number in the Periodic Table of Elements. The ... Protons are a positively charged particle that is located in the nucleus of an atom. The number of protons is very important in the atom as it gives the atom ... These are the protons, neutrons, and electrons. Protons are positively charged particles, have mass, and are located in the center, or nucleus of the atom.