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Magnesium. 2+8+2=12 electrons so it also has 12 protons., Mg has proton number 12. You can tell by looking that is is in group 2 as the outer shell has 2 electrons. It has 2 filled inner energy levels and 2 electrons in the outer shell.
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∙ 13y ago
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∙ 9y agoChlorine is the element with the electron configuration 2, 8, 7. It is right before Argon with a configuration of 2, 8, 8 and just after sulfur with 2, 8, 6.
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∙ 15y ago2+8+8+3=21=atomic number.
Element with atomic number 21= Sc = Scandium
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∙ 11y agoAluminum, atomic number 13 (because 2+8+3 = 13), has the 2, 8, 3 electron configuration
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∙ 10y agoMagnesium is an element with the electron arrangement 2-8-2.
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∙ 9y agoCalcium has this electronic arrangement. Its atomic number is 20.
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∙ 15y agosilicon
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∙ 10y agoSilicon
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What element has an electron arrangement of 2882?
This chemical element is calcium (Ca).
Which electron arrangement is that of a metallic element?
There is a sea of delocalised electrons formed in a metallic element, and the ions are attrracted to this.
What is the electron shell arrangement of caesium?
The electron shell arrangement of Ceasium is 2.8.8.18.18.1
What does potassium have to do to achieve the same electron arrangement as neon?
to have a full outer orbital like neon, it will have to bond with another element.
Are the elements oxygen and the element hydrogen made from the same of atom?
No. A Hydrogen atom has 1 proton and 1 electron with the electron arrangement 1. An Oxygen atom has 8 protons, 8 neutrons and 8 electrons with the elecron arrangement 2. 6.
What element has an electron arrangement of 2882?
This chemical element is calcium (Ca).
What element with the electron arrangement 287?
Chlorine
What is the element with the electron arrangement of 2 and 8 and 7?
Chlorine
Which electron arrangement is that of a metallic element?
There is a sea of delocalised electrons formed in a metallic element, and the ions are attrracted to this.
Which element contains the same inside electron arrangement as phosphorus?
All of the elements in Period 3, excluding group 18/VIIIA, have the same inside electron arrangement as phosphorus. They all have the electron configuration of neon as their inside arrangement of electrons.
Which element contains the same inside electron arrangement as phosphorus (p)?
All of the elements in Period 3, excluding group 18/VIIIA, have the same inside electron arrangement as phosphorus. They all have the electron configuration of neon as their inside arrangement of electrons.
What is the relationship between the electron configuration of an element and the period in which that element appear in the periodic table?
Electron configuration is the arrangement of elements according to their increasing atomic numbers whiles period is the arrangement of elements according to the increasing number of valence electrons.
Why is there a distinct electron arrangement for each atom?
because different element have different number of electrons.
What determines the properties of an element?
The three factors determine the chemical properties of an element:The number and arrangement of electrons in an atomThe number of valence electronsThe number and arrangement of electrons
Write the arrangement for the element xenon?
The electron configuration, in standard form, is [Kr] 4d10 5s2 5p6.
Which elements have the same electron arrangement as Argon Chlorine Sulfur or Potassium?
No element has the exact same election arrangement as another element. However ion can have the same election arrangement as another element. For example Chloride (Cl-) has the same configuration as Argon, and Potassium (I) (K+) also has the same configuration as argon.
What is the electron shell arrangement of caesium?
The electron shell arrangement of Ceasium is 2.8.8.18.18.1
