Physics

Physics, 08.10.2019 21:00, kevonmajor

What is the electron configuration for a calcium atom?

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Chemistry, 28.09.2019 07:20, yourgirlnevaeh

The electron configuration can also be represented by writing the symbol for the occupied subshell and adding a superscript to indicate the number of electrons in that subshell. for example, consider a carbon atom having an atomic number of 6. the total number of electrons in a neutral carbon atom is 6. the electron configuration of the carbon atom represented by the orbital diagram is this electron configuration can be written as 1s22s22p2 use the rules for determining electron configurations to write the electron configuration for p . express your answer in complete form in order of increasing orbital energy. for example, 1s22s2 should be entered as 1s^22s^2.

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Chemistry, 24.10.2019 20:43, hdjehd

Remember that cr has a ground-state electronic configuration of [ar]4s13d5 and cu has a ground state electronic configuration of [ar]4s13d10. also, remember that when you ionize a transition metal, you always remove electrons from the ns subshell before the (n-1)d subshell. in other words, a cr3+ ion has a configuration of [ar]3d3 and not [ar]4s13d2. the reason for this is that, even though the 6 valence electrons of cr are spread out through the 4s and 3d orbitals as if the 4s and 3d subshells were the same energy, when it comes to ionizing the atom, the 4s orbital is actually slightly higher in energy so that the 4s electron is removed first. which statement(s) is/are true? i. in a calcium atom, the 2px and 3px orbitals have the same size and shape. ii. in a lithium atom, the 2s and 2p subshells have different energies. iii. the 3px, 3py, and 3pz orbitals look the same, but they point in different directions. iv. in a cr atom, a 4s electron has higher energy than a 3d electron. group of answer choices iii, iv only ii, iii only i, ii, iii, iv ii, iii, iv only iii only

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Chemistry, 02.11.2019 04:31, maciemarklin3522

Chemistry 11 orbital theory 1. for each of the following elements, 9 configuration according to the orbital theory. following elements, give the electron distribution according to bohr, and the electron abreviated electron electron distribution configuration electron configuration a) nickel b) arsenic c) gold 2. an atom has the electron configuration 1s 2s 2p 3s 3p? a) how many electrons does this atom have? 12 b) what are the name and symbol of this atom? mo c) this atom is not in the ground state. what would its electron configuration be in the ground state?

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Chemistry, 04.11.2019 17:31, bg988763p7cl2d

Select all the statements that are true about electron configurations: a) the electron configuration of an atom describes the energy of electrons in the atom. b) the electron configuration for an atom describes the likely location of electrons in that atom. c) the electron configuration of an atom is a tool we can use to explain the reactivity of an atom. d) it is not possible to determine the number of valence electrons an atom has using an electron configuration diagram or notation.

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