Consider the following statement: "The ionization energy for the potassium atom is negative, because when \(\mathrm{K}\) loses an electron to become \(\mathrm{K}^{+}\), it achieves a noble gas electron configuration." Indicate everything that is correct in this statement. Indicate everything that is incorrect. Correct the incorrect information, and explain.

Short Answer

Expert verified
The statement "The ionization energy for the potassium atom is negative, because when K loses an electron to become K+, it achieves a noble gas electron configuration." is partly incorrect. Ionization energy is always positive, not negative. The correct statement should be: "The ionization energy for the potassium atom is positive because energy is required to remove an electron from an atom. When K loses an electron to become K+, it achieves a noble gas electron configuration."

Step by step solution

01

Understanding Ionization Energy

Ionization energy is the amount of energy required to remove the most loosely bound electron from an isolated gaseous atom or ion. In simple terms, it is the energy required to "kick out" an electron from an atom. It is generally expressed in electron volts (eV) or kilojoules per mole (kJ/mol).
02

Relation between Ionization Energy and Electron Configuration

Ionization energy is directly related to the stability of an atom's electron configuration. Atoms with stable electron configurations, such as noble gases, have high ionization energies because they are less likely to lose an electron. As electrons are removed from the outermost shell, the remaining electrons experience a stronger attraction to the nucleus, causing ionization energy to increase overall.
03

Analyzing the Statement

Now let's analyze the given statement: "The ionization energy for the potassium atom is negative, because when K loses an electron to become K+, it achieves a noble gas electron configuration." Here, the statement talks about the ionization energy of the potassium atom and the fact that upon losing an electron (transforming into K+), potassium achieves a noble gas electron configuration. These two statements are independent and need to be analyzed separately. Regarding the first part of the statement about ionization energy, it is incorrect to say that the ionization energy is negative. Ionization energy is always a positive value since energy is required (not released) to remove an electron from an atom. So, saying the ionization energy for the potassium atom is negative is incorrect. Regarding the second part of the statement, it is correct to say that when K loses an electron to become K+, it achieves a noble gas electron configuration. The electron configuration of potassium (K) is \(1s^22s^22p^63s^23p^64s^1\), and upon losing an electron, it becomes \(1s^22s^22p^63s^23p^6\), which is the electron configuration for the noble gas argon (Ar).
04

Correcting the Incorrect Information

Now that we have identified the incorrect part of the statement, let's correct it. The corrected version of the statement should read: "The ionization energy for the potassium atom is positive because energy is required to remove an electron from an atom. When K loses an electron to become K+, it achieves a noble gas electron configuration." In conclusion, the incorrect part of the statement was referring to the ionization energy as negative. Ionization energy is always positive, as it represents the amount of energy required to remove an electron from an atom. The correct part of the statement is that potassium achieves a noble gas electron configuration upon losing an electron and forming K+.

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