Because a full 4s orbital is more stable than a full 3d and half full 4s. So, the last 3d electron jumps up to the 4s orbital.
Every element has an electron configuration based on the number of electrons it has. However, the electron configurations of most elements are at least somewhat unstable. To obtain a more stable configuration, atoms will either share, give, or steal electrons in bonds with other atoms. In short: compounds are generally more stable than single atoms.
ns2np32nd answer :outer electron configuration is the same as valence electron , you can easily find it in the period table : using the number of the group :Group 1 : one, Group 2 :two , Group 3-12 cannot be found instead d electron count is used , group 13 : three , Group 14 : four ans so on until Group 18 : EightSo oxygen is in group 16 so it has 6 outer electron configuration or look to the Nobel gas notation : [He] 2s2 2p4 so count the power of last orbitals 2s 2p so : 6Read more: What_is_the_outer_electron_configuration_for_aluminum
The elements in group one and two react so easily because they have only one or two valence electrons, and the non metals, want those electrons. These group elements loose 1 or 2 electron to be stable instead of gaining 6 or 7 to complete the outer shell attain stable electronic configuration of a noble gas.
You can't tell if the electron is paired or unpaired. An orbital diagram can help you see if the electron has a pair or not.
Cadmium has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10, commonly written in the shorthand as [Kr] 5s2 4d10. For students who have not learnt spdf notation, the configuration is normally written as 2, 8, 18, 18, 2. It has two valence electrons. The ion would have 8 instead of 10 as the last number.
Yes, the arrows indicate the number of electrons by showing it instead of writing it out
"Noble gas configuration" means that in writing out an electron configuration for an atom, rather than writing out the occupation of each and every orbital specifically, you instead lump all of the core electrons together and designate it with the symbol of the corresponding noble gas on the Periodic Table (in brackets). For example, the noble gas configuration of nitrogen is [He]2s22p3
because of their oxidation numbers, they want to obtain a stable electron configuration
"Noble gas configuration" means that in writing out an electron configuration for an atom, rather than writing out the occupation of each and every orbital specifically, you instead lump all of the core electrons together and designate it with the symbol of the corresponding noble gas on the periodic table (in brackets). For example, the noble gas configuration of nitrogen is [He]2s22p3
it all depends on the electron configuration if it is positive or negative, you have to look at the transition metals and valence electrons and determine the charge and use the formula n-11s^2 2s^2 2p^6 3s^2 3p^6 3d^10
"Noble gas configuration" means that in writing out an electron configuration for an atom, rather than writing out the occupation of each and every orbital specifically, you instead lump all of the core electrons together and designate it with the symbol of the corresponding noble gas on the periodic table (in brackets). For example, the noble gas configuration of nitrogen is [He]2s22p3
"Noble gas configuration" means that in writing out an electron configuration for an atom, rather than writing out the occupation of each and every orbital specifically, you instead lump all of the core electrons together and designate it with the symbol of the corresponding noble gas on the periodic table (in brackets). For example, the noble gas configuration of phosphorus will be [Ne]3s23p3
Generally, atoms would want to fulfill the octet rule: 8 electrons in the valence shell. This gives the atom a noble gas configuration and is seen as stable. Since the Chlorine atom is in group 7 of the periodic table, it "prefers" to gain one electron instead of losing 7 to attain the stable octet configuration.
"Noble gas configuration" means that in writing out an electron configuration for an atom, rather than writing out the occupation of each and every orbital specifically, you instead lump all of the core electrons together and designate it with the symbol of the corresponding noble gas on the periodic table (in brackets). For example, the noble gas configuration of the element nitrogen is [He]2s22p3
Every element has an electron configuration based on the number of electrons it has. However, the electron configurations of most elements are at least somewhat unstable. To obtain a more stable configuration, atoms will either share, give, or steal electrons in bonds with other atoms. In short: compounds are generally more stable than single atoms.
1s2 2s2 2p6 3s2 3p13s23p12nd answer :outer electron configuration is the same as valence electron , you can easily find it in the period table : using the number of the group :Group 1 : one, Group 2 :two , Group 3-12 cannot be found instead d electron count is used , group 13 : three , Group 14 : four ans so on until Gruop 18 : Eight
A subshell is particularly stable if it is half full or full, the atom would "choose" the more stable one. to attain a more stable configuration, the electron from s orbital jumps to the previous d orbital.Chromium has a configuration of [Ar]4s13d5, although you would expect to see four d electrons instead of five.Cu: [Ar]4s23d9, to gain stability stability, one electron from the s shell jumps into the d shell: [Ar]4s13d10.