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What element with the electron arrangement 287?
The element with the electron arrangement 2-8-7 is fluorine, which has the atomic number 9. Fluorine has 9 electrons, arranged as 2 in the first energy level, 8 in the second energy level, and 1 in the third energy level.
Which element has the noble-gas configuration He 2s2 2p3?
The element with the noble-gas configuration He 2s2 2p3 is nitrogen (N), which has an atomic number of 7. This configuration represents the electron arrangement in nitrogen, where it has two electrons in the 2s orbital and three electrons in the 2p orbital.
How many valence electrons should an element to react with a element with 7 valence electrons?
one valence electron
What is the correct number of shells neptunium the element has?
Neptunium has 7 electron shells.
How many outer shell electron does an atom of an element belonging to the halogen family have?
An atom of an element belonging to the halogen family typically has 7 outer shell electrons. Halogens are in group 17 of the periodic table, which means they have 7 valence electrons.
What element with the electron arrangement 287?
The element with the electron arrangement 2-8-7 is fluorine, which has the atomic number 9. Fluorine has 9 electrons, arranged as 2 in the first energy level, 8 in the second energy level, and 1 in the third energy level.
What element has an electron arrangement of 2.8.5?
Phosphorus
Which atom has the same electron shell arrangement of a ion of bromine?
An ion of bromine has the electron shell arrangement of 2, 8, 18, 7. Therefore, an atom that has the same electron shell arrangement would be one that has 35 electrons, such as the element bromine itself before it becomes an ion with a charge of -1.
Which element has the electron arrangement 2.8.8.2?
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.
What is electron arrangement of chlorine?
17(2,8,7)
Write the electron configuration for this element CI?
[Ne] 3s2 3p5 or 2, 8, 7
What element has its outermost electron is 7s1?
The element with its outermost electron in the 7s1 orbital is francium (element 87). Its outermost electron is in the 7th energy level (n=7), specifically in the 7s subshell.
Which element has 3 energy levels and 7 valence electrons in a neutral state?
The element with 3 energy levels and 7 valence electrons in a neutral state is chlorine (Cl), which has an electron configuration of 2-8-7.
How many electrons does the element germanium have in its electron cloud?
Germanium has 32 electrons in its electron cloud.
Which element has the noble-gas configuration He 2s2 2p3?
The element with the noble-gas configuration He 2s2 2p3 is nitrogen (N), which has an atomic number of 7. This configuration represents the electron arrangement in nitrogen, where it has two electrons in the 2s orbital and three electrons in the 2p orbital.
How many electron does the element nitrogen have?
There are 7 electrons, 7 Protons, and 7 neutrons in the element Nitrogen.
What is the electron configuration of 2-8-18-7-3 for a neutral atom?
This electron configuration represents Sr or Strontium. 2-8-18-7-3 represents Sr in the excited state; 2-8-18-8-2 represents Sr in the ground state.
