The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
The halogens are is group VII (17), and thus they all have 7 valence electrons. These will be located in different energy levels for the different halogens, but since they are all also p-block elements, they will all have ns^2 np^5 electron configurations, where n is the period number. Examples: Cl will be [Ne] 3s^2 3p^5 and Br will be [Ar] [Ar] 4s2 3d10 4p5 (note the inclusion of the d-block electrons for Br).
Electron configuration of neptunium: [Rn]7s26d15f4
Transuranium elements are those that have an atomic number greater than uranium's, which is 92. The first transuranium element is neptunium (Np) with atomic number 93.
p-block elements are the elements in which the last electron entres np orbital.which include six groups of elements i.e. group 13 to 18.boron family,carbon family,pnicogens,chalcogens,halogens and noble gases. Thank you
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
Similarities: - Np and Pu are radioactive, unstable chemical elements - Np and Pu are man made - Np and Pu are dangerous - Np and Pu are fissionable with thermal neutrons
It is the reverse: Np-235 decay to U-235 by electron capture.
The halogens are is group VII (17), and thus they all have 7 valence electrons. These will be located in different energy levels for the different halogens, but since they are all also p-block elements, they will all have ns^2 np^5 electron configurations, where n is the period number. Examples: Cl will be [Ne] 3s^2 3p^5 and Br will be [Ar] [Ar] 4s2 3d10 4p5 (note the inclusion of the d-block electrons for Br).
The halogens are is group VII (17), and thus they all have 7 valence electrons. These will be located in different energy levels for the different halogens, but since they are all also p-block elements, they will all have ns^2 np^5 electron configurations, where n is the period number. Examples: Cl will be [Ne] 3s^2 3p^5 and Br will be [Ar] [Ar] 4s2 3d10 4p5 (note the inclusion of the d-block electrons for Br).
All these 92 elements (including also Np and Pu) are considered now natural elements.
Electron configuration of neptunium: [Rn]7s26d15f4
Transuranium elements are those that have an atomic number greater than uranium's, which is 92. The first transuranium element is neptunium (Np) with atomic number 93.
House codes:/np @931629/np @709003Bootcamp like codes:/np @172976/np @608368/np @191205/np @842019/np @159932/np @593204/np @145219/np @1450120/np @449496/np @618999/np @801683/np @1014313/np @1444036/np @633644/np @808800/np @1444041Thats all I got sorry if some don't work I didn't check them allIf you want to find me on TFM my user is Butterbe
p-block elements are the elements in which the last electron entres np orbital.which include six groups of elements i.e. group 13 to 18.boron family,carbon family,pnicogens,chalcogens,halogens and noble gases. Thank you
House codes: /np @931629 /np @709003 Bootcamp like codes: /np @172976 /np @608368 /np @191205 /np @842019 /np @159932 /np @593204 /np @145219 /np @1450120 /np @449496 /np @618999 /np @801683 /np @1014313 /np @1444036 /np @633644 /np @808800 /np @1444041 That's all I know, but I hope it'll be to help ^^
All are radioactive, artificial elements (but note that Np and Pu can exist also naturally in extremely low concentrations).