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Q. With the increase of the effective nuclear charge, the size of the atom or ion
- a)increases
- b)decreases
- c)remain the same, since it has no bearing on size
- d)it will depend on period to period and group to group
Correct answer is option 'D'. Can you explain this answer?
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Choose the correct answer.Q. With the increase of the effective nuclea...
The effective nuclear charge is the net positive charge experienced by an electron in a multi-electron atom.
The term "effective" is used because the shielding effect of negatively charged electrons prevents higher orbital electrons from experiencing the full nuclear charge by the repelling effect of inner-layer electrons.
The effective nuclear charge experienced by the outer shell electron is also called the core charge. It is possible to determine the strength of the nuclear charge by looking at the oxidation number of the atom.
The term "effective" is used because the shielding effect of negatively charged electrons prevents higher orbital electrons from experiencing the full nuclear charge by the repelling effect of inner-layer electrons.
The effective nuclear charge experienced by the outer shell electron is also called the core charge. It is possible to determine the strength of the nuclear charge by looking at the oxidation number of the atom.
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Choose the correct answer.Q. With the increase of the effective nuclea...
Explanation:
Increasing Effective Nuclear Charge and Atom/Ion Size
Increasing effective nuclear charge has a direct impact on the size of an atom or ion. Here's how this phenomenon works:
- Definition of Effective Nuclear Charge: Effective nuclear charge is the net positive charge experienced by an electron in an atom. It takes into account the shielding effect of inner electrons on the outer electrons.
- Effect on Size: As the effective nuclear charge increases, the attraction between the nucleus and the outer electrons becomes stronger. This increased attraction pulls the outer electrons closer to the nucleus, thereby reducing the size of the atom or ion.
- Variation Across Periods and Groups: The effect of increasing effective nuclear charge on atom or ion size can vary across periods and groups in the periodic table. In general, as you move from left to right across a period, the effective nuclear charge increases, leading to a decrease in atomic size. However, when moving down a group, the size of atoms tends to increase due to the addition of new energy levels.
- Dependence on Periods and Groups: The impact of increasing effective nuclear charge on atom or ion size ultimately depends on the specific period and group being considered. Factors such as the number of protons, electron configuration, and shielding effects play a role in determining the size of atoms or ions in different situations.
In conclusion, the relationship between effective nuclear charge and atom/ion size is a complex interplay of various factors, and the size changes can vary depending on the specific period and group within the periodic table.
Increasing Effective Nuclear Charge and Atom/Ion Size
Increasing effective nuclear charge has a direct impact on the size of an atom or ion. Here's how this phenomenon works:
- Definition of Effective Nuclear Charge: Effective nuclear charge is the net positive charge experienced by an electron in an atom. It takes into account the shielding effect of inner electrons on the outer electrons.
- Effect on Size: As the effective nuclear charge increases, the attraction between the nucleus and the outer electrons becomes stronger. This increased attraction pulls the outer electrons closer to the nucleus, thereby reducing the size of the atom or ion.
- Variation Across Periods and Groups: The effect of increasing effective nuclear charge on atom or ion size can vary across periods and groups in the periodic table. In general, as you move from left to right across a period, the effective nuclear charge increases, leading to a decrease in atomic size. However, when moving down a group, the size of atoms tends to increase due to the addition of new energy levels.
- Dependence on Periods and Groups: The impact of increasing effective nuclear charge on atom or ion size ultimately depends on the specific period and group being considered. Factors such as the number of protons, electron configuration, and shielding effects play a role in determining the size of atoms or ions in different situations.
In conclusion, the relationship between effective nuclear charge and atom/ion size is a complex interplay of various factors, and the size changes can vary depending on the specific period and group within the periodic table.
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Choose the correct answer.Q. With the increase of the effective nuclear charge, the size of the atom or iona)increasesb)decreasesc)remain the same, since it has no bearing on sized)it will depend on period to period and group to groupCorrect answer is option 'D'. Can you explain this answer?
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