[He]2s²: The electron configuration begins with helium ([He]), which has 2 electrons (atomic number = 2). Adding the 2 electrons from the 2s² subshell gives a total of 4 electrons. The element with atomic number 4 is Beryllium (Be). [Ne]3s² 3p⁵: The configuration starts with neon ([Ne]), which has 10 electrons (atomic number = 10).

2024年3月6日 · [He]2s2: This electron configuration corresponds to Beryllium (Be), which is found in Group 2 of the periodic table. [Ne]3s23p5: This configuration is for Chlorine (Cl), located in Group 17. [Xe]6s1: This represents the element Cesium (Cs), found in Group 1. [Ar]4s23d9: This electron configuration is that of Copper (Cu), which is located in ...

2024年11月4日 · [He] 2s²: The notation [He] signifies that we start from Helium, which has 2 electrons. Adding 2 electrons in the 2s orbital means this configuration has a total of 4 electrons (2 from He + 2 from 2s²). This corresponds to the element Beryllium (Be), which is atomic number 4. [Ne] 3s² 3p⁵: The notation [Ne] represents Neon, with 10 electrons.

2020年1月21日 · In the given configuration, [He] represents the core electrons which are the same as the noble gas helium, indicating that the element is in the second row of the periodic table. The 2s2 indicates the element has a full 2s subshell, while the 2p2 indicates there are two electrons in the 2p subshell.

The element with the noble-gas configuration He 2s2 2p3 is nitrogen (N), which has an atomic number of 7. This configuration represents the electron arrangement in nitrogen, where it has two ...

2023年8月22日 · The chemical notation [He]2s2 2p5 amounts to a total of 9 electrons, which is equivalent to the atomic number of fluorine, 'F'. Therefore, [He]2s2 2p5 represents the chemical symbol 'F'. Explanation: The chemical notation [He]2s2 2p5 is a shorthand way for writing the electron configuration of an atom.

2024年12月22日 · Patrick conducted an experiment to study the solubility of two substances. He used two beakers labeled A and B, each containing 100 mL of water at 20 ∘ C. He added 60 g of Substance A to beaker A and 60 g of Substance B to beaker B. Each solution was stirred for 1 minute, and the amount of undissolved substance was weighed.

2024年5月26日 · [He] 2S2 is the noble gas electron configuration for beryllium.

2024年5月26日 · The element with the electron configuration He 2s2 2p5 is fluorine, with the elemental symbol F. The element fluorine has 9 electrons. Which is the electron configuration for an atom of fluorine?

2024年5月31日 · The element with a valence electron configuration of 2s2 2p4 is Oxygen (O). It has 6 valence electrons in total, with 2 in the 2s orbital and 4 in the 2p orbital.