2024年11月9日 · Helium is an atom. Heavier elements have molecules. Is helium diatomic? No. First consider two helium atoms, each has two electrons spin-paired in a filled 1s shell, for a …

2024年6月8日 · Yes, a helium atom is electrically neutral because it has an equal number of protons, which carry a positive charge, and electrons, which carry a negative charge. The …

2024年6月3日 · The nucleus of a helium atom is composed of 2 protons and 2 neutrons (the atomic number is 2 and the mass number is 4). Protons have a relative charge of +1 and …

2024年6月14日 · A helium atom is already in this state (it is a noble gas). A hydrogen atom only has one electron in its 1s orbital, which allows it to react readily with many different types of …

2024年6月23日 · When two hydrogen atoms combine to form a helium atom, a process called nuclear fusion occurs. This releases a large amount of energy in the form of light and heat. …

2024年5月26日 · The helium atom is chemically inert because it has a complete outer shell of electrons, making it very stable. This full outer shell does not readily gain or lose electrons to …

The uncertainity in position of an electron and helium atom are same. If the uncertainity in momentum for the electron is 32 × 10 5 , then the uncertainity in momentum of helium atom …

2024年6月8日 · Helium has one full shell, so therefore there is a small ATOM RADIUS as the shell is close to the nucleus, this means there is a greater nuclear attraction, also the outer …

A helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is :

2024年6月9日 · What is the ion charge of a helium atom Is it plus 1? Helium atom is neutral and has no charge. It becomes a positive ion with a charge of +1 when it loses an electron.