Choose from the list the correct electron configurations for the following ions.
A B C D E F G H I J K+
A B C D E F G H I J In+
A B C D E F G H I J Li+
A B C D E F G H I J Na+
A. 1s22s22p63s23p6
B. 1s22s22p63s23p64s23d104p64d105s25p1
C. 1s22s22p63s23p63d104s2
D. 1s22s22p63s23p64s1
E. 1s22s22p63s1
F. 1s1
G. 1s22s22p63s23p63d10
H. 1s22s22p6
I. 1s2
J. none of the above
I don't get it. If you can clarify and repost at the top of the page we may be able to help.
To determine the correct electron configurations for the given ions, we need to consider the number of electrons present in the neutral atom and the number of electrons gained or lost to form the ion.
Let's go through each ion and determine its electron configuration:
K+ (Potassium ion):
The neutral atom of potassium has 19 electrons (atomic number 19). To form the K+ ion, one electron is lost.
The electron configuration of neutral potassium is 1s^22s^22p^63s^23p^64s^1.
Since one electron is lost, the electron configuration of K+ is 1s^22s^22p^63s^23p^63d^104s^2.
In+ (Indium ion):
The neutral atom of indium has 49 electrons (atomic number 49). To form the In+ ion, one electron is lost.
The electron configuration of neutral indium is 1s^22s^22p^63s^23p^64s^23d^104p^64d^105s^25p^1.
Since one electron is lost, the electron configuration of In+ is 1s^22s^22p^63s^23p^64s^23d^104p^64d^105s^25p^0.
Li+ (Lithium ion):
The neutral atom of lithium has 3 electrons (atomic number 3). To form the Li+ ion, one electron is lost.
The electron configuration of neutral lithium is 1s^22s^1.
Since one electron is lost, the electron configuration of Li+ is 1s^2.
Na+ (Sodium ion):
The neutral atom of sodium has 11 electrons (atomic number 11). To form the Na+ ion, one electron is lost.
The electron configuration of neutral sodium is 1s^22s^22p^63s^1.
Since one electron is lost, the electron configuration of Na+ is 1s^22s^22p^6.
Now let's match the correct electron configurations to the given ions:
A. 1s^22s^22p^63s^23p^6 - This is the electron configuration of the neutral noble gas, Neon (Ne), and not any of the given ions.
B. 1s^22s^22p^63s^23p^64s^23d^104p^64d^105s^25p^1 - This electron configuration is not associated with any of the given ions.
C. 1s^22s^22p^63s^23p^63d^104s^2 - This is the electron configuration of the neutral atom of calcium (Ca), and not any of the given ions.
D. 1s^22s^22p^63s^23p^64s^1 - This electron configuration matches the neutral atom of potassium (K), not the K+ ion.
E. 1s^22s^22p^63s^1 - This electron configuration matches the neutral atom of sodium (Na), not the Na+ ion.
F. 1s^1 - This electron configuration matches the neutral atom of hydrogen (H), and not any of the given ions.
G. 1s^22s^22p^63s^23p^63d^10 - This electron configuration is associated with the neutral atom of argon (Ar), and not any of the given ions.
H. 1s^22s^22p^6 - This electron configuration matches the neutral atom of oxygen (O), and not any of the given ions.
I. 1s^2 - This electron configuration matches the neutral atom of helium (He), and not any of the given ions.
J. None of the above - This is the correct answer, as none of the given electron configurations match the ions.
Therefore, the correct answer is J. None of the above.