/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 20 The HD \(^{+}\) ion contains (... [FREE SOLUTION] | 91Ó°ÊÓ

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The HD \(^{+}\) ion contains (1) 1 proton, 1 neutron, 1 electron (2) 2 protons, 1 neutron, 2 electrons (3) 2 protons, 1 neutron, 0 electron (4) 2 protons, 1 neutron, 1 electron

Short Answer

Expert verified
Option (3): 2 protons, 1 neutron, 0 electron.

Step by step solution

01

Understand the HD+ Ion

The HD+ ion is a molecular ion consisting of one proton (H+) and one deuterium nucleus (D+). Deuterium is an isotope of hydrogen with one proton and one neutron.
02

Deuterium Composition Analysis

Deuterium (D) has 1 proton and 1 neutron. When deuterium loses an electron and becomes D+, it retains its proton and neutron but has no electrons.
03

Combine H+ and D+ Information

The HD+ ion consists of one proton from H+ and one D+ nucleus with one proton and one neutron. Thus, HD+ contains two protons in total (one from H and one from D) and one neutron from D.
04

Determine the Electron Count

Since both H+ and D+ ions are positively charged, they do not have electrons. Therefore, the HD+ ion has no electrons.
05

Choose the Correct Answer

Combine the information: HD+ contains 2 protons, 1 neutron, and 0 electrons. Therefore, the correct answer is Option (3).

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Proton Count in Ions
Understanding the proton count in ions is essential for grasping atomic structure and ion composition.
Protons are positively charged particles found in the nucleus of an atom. The number of protons in the nucleus defines the element. For example, hydrogen with one proton is the simplest atom.
Positive ions, like H+ (hydrogen ion), result from losing electrons but retain their proton count. In the context of the HD+ ion:
  • H+ has 1 proton.
  • Deuterium (D) has 1 proton and 1 neutron. When it loses an electron, it becomes D+.
Combining these, HD+ contains in total:
  • 1 proton from H+
  • 1 proton from D+
Thus, the HD+ ion has 2 protons.
Neutron Count in Deuterium
To understand the HD+ ion, we need to analyze the neutron content, especially from deuterium (D). Deuterium is an isotope of hydrogen:
  • Regular hydrogen has no neutrons, just 1 proton.
  • Deuterium, however, has 1 proton and 1 neutron.
When deuterium loses its electron to form D+, it retains its neutron and proton.
Therefore:
  • HD+ having D+ contributes 1 neutron to the ion.
Combining with the previously discussed proton count, this makes the HD+ ion with 2 protons and 1 neutron.
Electronic Configuration of Ions
Electronic configuration involves understanding the arrangement of electrons in atoms and ions.
Normally, neutral hydrogen (H) has 1 electron orbiting around its nucleus and so does deuterium. However, when these atoms ionize to form positive ions (H+ and D+):
  • They lose their electrons and thus, carry a positive charge.
Specifically for HD+:
  • The H+ ion has 0 electrons.
  • The D+ ion also has 0 electrons.
Combining this information, the HD+ ion, consisting of H+ and D+, has no electrons.
Therefore, the total electron count in HD+ is zero, contributing to its positive charge.

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Most popular questions from this chapter

The electronic configuration of the element which is just above the element with atomic number 43 in the same group is (1) \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{19} 4 \mathrm{~s}^{2} 4 \mathrm{p}^{6}\) (2) \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{2}\) (3) \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{1}\) (4) \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{10} 4 \mathrm{~s}^{2} 4 \mathrm{p}^{5}\)

Which of the following is false about electron? (1) The negatively charged electrons in an atom are attracted by the positively charged nucleus by electrostatic attractive force. (2) An electron near the nucleus is strongly attracted by the nucleus and has low potential energy. (3) An electron distant from the nucleus is less firmly held and has high potential energy. (4) On heating an atom, all of its electrons are ejected.

The chance of finding an s-electron in any particular direction from the nucleus is (1) proportional to the value of its principal quantum number (2) the same (3) dependent on the direction (4) zero

The false statement among the following is (1) In the absence of magnetic field p-orbitals are known as threefold degenerate. (2) Three electrons in p-subshell must have the quantum number \(s=+1 / 2\) or \(-1 / 2\). (3) The magnetic quantum number for valency electrons of sodium is zero. (4) The total values of magnetic quantum number of an electron when the value of \(n=2\), is 3 .

An electron that has the quantum number \(n=3\) and \(m=2\) must (1) have spin value \(+1 / 2\) (2) have \(l=1\) (3) have \(l=0,1\) or 2 (4) have \(l=2\)

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