copper
The element in question has an atomic number that is 2 less than element C and its electron configuration ends in 3d9. This would suggest that the element is one of the transition metals that comes before element C in the periodic table. A possible candidate fitting this description is manganese (Mn), which has an atomic number of 25 and an electron configuration of [Ar] 3d5 4s2.
Copper has a partially filled d orbital to achieve greater stability. Hence, it gives up one electron from the 4s orbital to make the 3d orbital completely filled with 10 electrons, which is a more stable configuration. This results in the electron configuration of 3d10 4s1 for copper rather than 3d9 4s2.
If you meant "element" as in a chemical element, there is no element with the symbol "ef" in the periodic table.
A single displacement reaction is a type of chemical reaction where a free element replaces another element in a compound. This occurs when a more reactive element displaces a less reactive element in a compound, forming a new compound and releasing the displaced element.
Yes, fluoride is an anion that is derived from the element fluorine.
Calcium (Ca)
The element in question has an atomic number that is 2 less than element C and its electron configuration ends in 3d9. This would suggest that the element is one of the transition metals that comes before element C in the periodic table. A possible candidate fitting this description is manganese (Mn), which has an atomic number of 25 and an electron configuration of [Ar] 3d5 4s2.
The noble gas notation for the copper(II) ion (Cu2+) is [Ar]3d9. This notation represents the electronic configuration of copper when all inner shell electrons up to argon are included before the outer d orbital configuration of 3d9.
The binary representation is : 1111011001
The abbrieviated electron configuration of copper is [Ar] 4s23d9
Copper has a partially filled d orbital to achieve greater stability. Hence, it gives up one electron from the 4s orbital to make the 3d orbital completely filled with 10 electrons, which is a more stable configuration. This results in the electron configuration of 3d10 4s1 for copper rather than 3d9 4s2.
The electron configuration of copper(II) is [Ar] 3d9 . Copper is [Ar] 3d10 4s1
The electronic configuration od Cu is [Ar] 3d10 4s1 This is an exception to the aufbau principle which would predict [Ar] 3d9 4s2.
chromium (Cr) and copper (Cu)chromium has 4s1,3d5 instead of 4s2,3d4 and copper has 4s1,3d10 instead of 4s2, 3d9
Cobalt has 9 valence electrons and generally cant lose 9 electrons to achieve the noble gas configuration.
It is an element.
Metal is not an element. It is a term used to classify an element, but it is not an element.