Lithium atoms have three electrons.
B. 1s22s22p63s23p64s23d5----Chromium: [Ar]1s22s22p63s23p63d54s1Manganese: [Ar]1s22s22p63s23p63d54s2
1s2 2s2 2p6 3s2 3p6 4s2 3d5
The extra electron would go into a 4s orbital because 4s can hold up to 2 electrons before 3d can be filled.
Iron has the electron configuration [Ar]3d64s2.
Copper (Cu) has one 3d electron.
B. 1s22s22p63s23p64s23d5----Chromium: [Ar]1s22s22p63s23p63d54s1Manganese: [Ar]1s22s22p63s23p63d54s2
The correct electron configuration for an element with 5 electrons in the 3d energy sublevel is represented as ( \text{[Ar]} , 3d^5 ). This indicates that the element has a total of 23 electrons, placing it in the transition metals category, specifically manganese (Mn). The full electron configuration would be ( \text{[Ar]} , 4s^2 , 3d^5 ).
1s2 2s2 2p6 3s2 3p6 4s2 3d5
The extra electron would go into a 4s orbital because 4s can hold up to 2 electrons before 3d can be filled.
The element that contains five electrons in its 3d orbital is manganese (Mn). Manganese has an atomic number of 25, and its electron configuration is [Ar] 4s² 3d⁵. This means it has five electrons in the 3d subshell.
Iron has the electron configuration [Ar]3d64s2.
Copper (Cu) has one 3d electron.
The electron configuration 4s²3d⁸ corresponds to the element nickel (Ni), which has an atomic number of 28. This configuration indicates that nickel has a total of 28 electrons, with the outermost electrons in the 4s and 3d subshells.
The element with the lowest atomic number that contains a half-filled d subshell at its ground state is scandium (atomic number 21). The electron configuration of scandium at ground state is [Ar] 3d^1 4s^2, where the 3d subshell is half-filled with one electron.
The electron configuration Ar4s²3d¹⁰4p⁴ corresponds to the element selenium (Se), which has an atomic number of 34. In this configuration, the "Ar" represents the electron configuration of argon, and the subsequent electrons fill the 4s, 3d, and 4p orbitals. Selenium is a nonmetal and is part of group 16 in the periodic table.
A positive ion ( the one that gives the electron) and a negative ion ( the one that accepts).
The correct electron configuration would be 3d5 as each orbital in the 3d sublevel can hold up to 2 electrons, and we have 5 electrons to place in this sublevel.