L-1 electron configuration
Scandium is a transition element, so it has properties quite different. so instead of having 2-8-8-3 it sends 1 electron to the inner L shell and becomes 2-8-9-2
D. S-2Electron configuration has to do with the number of electrons, so using a Periodic table, it is easy to find this answer.For example, O-2 has 2 more electrons than usual, so move two spaces to the right, which is neon.For F- , it is the same way. Since it is a minus 1, move one space to the right, which is neon.For Al+3 there are 3 LESS electrons than usual so move back(to the right) 3 spaces, which is neon.For S-2 , the answer to your problem, has the same electron configuration as Argon.For Mg+2 there are 2 less electrons so moving back 2 spaces gives you neon.Remember 'minus' means more electrons so for electron configurations you move forward on the Periodic table for ions with negative charge and backwards if the ion is positive.
A 4d electron; that is for apex :)
A set "A" is said to be a subset of "B" if all elements of set "A" are also elements of set "B".Set "A" is said to be a proper subset of set "B" if: * A is a subset of B, and * A is not identical to B In other words, set "B" would have at least one element that is not an element of set "A". Examples: {1, 2} is a subset of {1, 2}. It is not a proper subset. {1, 3} is a subset of {1, 2, 3}. It is also a proper subset.
The element with the electron configuration 1s2 2s2 2p6 3s1 is sodium (Na).
The element with a valence electron configuration of 2s2 is beryllium. Beryllium has 4 electrons, with 2 in the 2s subshell, which makes it have a valence electron configuration of 2s2.
The electron configuration for magnesium (12M) is 1s2 2s2 2p6 3s2.
The atomic number of zinc is 30. Its abbreviated electron configuration is [Ar]4s23d10 The full electron configuration is 1s22s22p63s23p64s23d10 (configurations for the atom in its ground state. Ions and excited atoms have different configurations).
Zinc has this electron configuration.
The shorthand electron configuration of aluminum is [Ne] 3s^2 3p^1, where [Ne] represents the electron configuration of the noble gas neon. This shorthand notation is used to show the core electrons before the valence electrons in the electronic configuration of an element.
The element with a valence electron configuration of 3s^2 3p^4 is sulfur (S), which has 16 electrons in total.
Group 1 elements have one valence electron. So, the valence electron configuration for each element in group 1 is ns1, where n represents the energy level.
In sodium fluoride, sodium has the electron configuration of neon. Sodium has an electron configuration of 2-8-1, similar to neon which has a full outer electron shell.
The element with the electron configuration 6s^2 5d^1 4f^1 is lawrencium (Lr), with atomic number 103. It is a synthetic element that is radioactive and not found naturally on Earth.
The general electron configuration for lanthanides is [Xe] 4f^n 5d^1 6s^2, where n ranges from 1 to 14 depending on the specific lanthanide element.
Iron has the electron configuration [Ar]3d64s2.