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Chapter 12: Problem 5

Which of the following statements is false? When an atom is ionized, i. an electron is removed from the atom; ii, an electron is added to the atom; iii. the atom becomes charged; iv. the atom may be accelerated by an electric field; \(v\). the energy of the electron is raised. (A) i only (B) ii only (C) i, ii, iv (D) ii, iii, iv (E) ii, iii, iv, v

Short Answer

Expert verified
(A) i only (B) ii only (C) iii only (D) iv only Answer: (B) ii only

Step by step solution

01

Understanding Ionization

Ionization is the process of adding or removing electrons from an atom, thereby giving the atom a net positive or negative charge called an ion. When an electron is removed from an atom, the atom becomes positively charged (cation), and when an electron is added, it becomes negatively charged (anion). We will now check each statement in the exercise against the ionization process.
02

Analyzing statement i

Statement i says, "an electron is removed from the atom." This statement is true because when an electron is removed from an atom, it becomes a positively charged ion (cation).
03

Analyzing statement ii

Statement ii says, "an electron is added to the atom." This statement is false for ionization because ionization doesn't always involve adding an electron to an atom; it can also involve removing an electron. So this statement doesn't accurately describe the ionization process.
04

Analyzing statement iii

Statement iii says, "the atom becomes charged." This statement is true because when an atom undergoes ionization, it gains or loses an electron, and this process gives the atom a net charge or makes it an ion.
05

Analyzing statement iv

Statement iv says, "the atom may be accelerated by an electric field." This statement is true because ions (charged atoms) are affected by the presence of an electric field and can be accelerated by it.
06

Analyzing statement v

Statement v says, "the energy of the electron is raised." This statement is true when an electron is removed from an atom (forming a cation) because the energy of the electron increases as it is further away from the positively charged nucleus.
07

Choosing the correct answer

After evaluating all statements, we found that statement ii is the only false statement. Therefore, the correct answer is: (B) ii only

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Most popular questions from this chapter

The nucleus of an ordinary hydrogen atom consists of (A) a neutron. (B) a proton. (C) a proton and a neutron. (D) a proton and two neutrons. (E) two protons and two neutrons.

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