The size of isoelectronic species is determined by the effective nuclear charge, which is the net positive charge experienced by an electron in a multi-electron atom. The more the positive charge, the more strongly the electrons are pulled towards the nucleus, and the smaller the atomic radius.

1. All these species are isoelectronic, meaning they all have the same number of electrons (10 electrons).

2. Na+ has 11 protons, Mg2+ has 12 protons, F- has 9 protons, and O2- has 8 protons.

3. The more protons, the greater the effective nuclear charge, and the smaller the atomic radius.

4. Therefore, the order of increasing atomic radii is: Mg2+

Question

The size of isoelectronic species is determined by the effective nuclear charge, which is the net positive charge experienced by an electron in a multi-electron atom. The more the positive charge, the more strongly the electrons are pulled towards the nucleus, and the smaller the atomic radius.

1. All these species are isoelectronic, meaning they all have the same number of electrons (10 electrons).

2. Na+ has 11 protons, Mg2+ has 12 protons, F- has 9 protons, and O2- has 8 protons.

3. The more protons, the greater the effective nuclear charge, and the smaller the atomic radius.

4. Therefore, the order of increasing atomic radii is: Mg2+ < Na+ < F- < O2-.

Knowee AI · Accepted Answer

The size of isoelectronic species is determined by the effective nuclear charge, which is the net positive charge experienced by an electron in a multi-electron atom. The more the positive charge, the more strongly the electrons are pulled towards the nucleus, and the smaller the atomic radius.

1. All these species are isoelectronic, meaning they all have the same number of electrons (10 electrons).

2. Na+ has 11 protons, Mg2+ has 12 protons, F- has 9 protons, and O2- has 8 protons.

3. The more protons, the greater the effective nuclear charge, and the smaller the atomic radius.

4. Therefore, the order of increasing atomic radii is: Mg2+ < Na+ < F- < O2-.

Consider the isoelectronic species, Na+, Mg2+, F– and O2–. The correct increasing order of their radii is.

Question

Consider the isoelectronic species, Na+, Mg2+, F– and O2–. The correct increasing order of their radii is.

Solution

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