What is the order Na+ Mg2+ O2 and F from smallest to largest radius? (2024)

What is the order Na+ Mg2+ O2 and F from smallest to largest radius?

Hence, the Correct Order Of Ionic Radii

For Na + , Mg 2 + , F − and O 2 − is Mg 2 + < Na + < F - < O 2 - .

What is the order of ions from smallest to largest radius?

Answer and Explanation: The order of ionic radii from smallest to largest is as follows: Al3+<Mg2+<Na+<K+ A l 3 + < M g 2 + < N a + < K + .

Which species is expected to have the largest radius F − O2 − Mg2+ Na+?

Answer and Explanation: The correct option is d. O2− has the largest radius as it has a minimum z-effect. The negatively charged anions are greater than cations and neutrally charged molecules.

Which is a bigger ion among Na+ F O2 and Mg2 +? Why?

Updated On: 27-06-2022. O2− is bigger ion among the given four. Among isoelectronic ions, the more the negative charge on the ion, the more is its size. The order is O2−>F−>Na+>Mg2+.

Which is the largest and smallest ion given below O2 F Na+ and Mg2+?

The largest and smallest ion in O²-, F-, Na+, and Mg2+ is O²- and Mg2+ Respectively.

Which is bigger Mg2+ or F?

Hence,in case of Mg^2+ electrostatic force between the nucleus and protons is stronger than F-. Therefore,Mg^2+ ion is smaller than F- ion.

Which is greater F or Na+?

But they have different number of protons. F− has 9 protons, Ne has 10 protons and Na+ has 11 protons. Since F− has lowest number of nuclear charge, it will have largest size.

Which has a larger radius Na+ or o2?

Therefore, even though a sodium ion and an oxygen ion have the same number of electron shells and the same number of electrons, a sodium ion is smaller because it has a greater number of protons. Or in other words, an oxygen ion is larger because it has fewer protons.

How do you rank ions by radius?

Rank from largest to smallest radius. To rank items as equivalent, overlap them. First locate each of the elements on the periodic table. Then, keeping in mind that ionic radii increase for ions with the same charge going down a row, sort the ions in order of increasing radii.

Which of the following species would you expect to have the smallest radius?

Helium has the smallest atomic radius.

Which is the smallest size Na+ or Mg2+?

Mg2+ is smaller than Na+ because Mg2+ has an extra electron.

Which is smaller between Na+ and Mg2+?

(i) The sodium ion (Na⁺) is larger than the magnesium ion (Mg²⁺) due to two effects.

In what order does the size increase among the isoelectronic ions Mg2+ Na+ and F?

Thus, the correct order of increasing ionic radii is Mg2+ < Na+ <F−< O2−

What is the order of size for Mg2+ Na+ F O2?

Hence, the Correct Order Of Ionic Radii For Na + , Mg 2 + , F − and O 2 − is Mg 2 + < Na + < F - < O 2 - .

Which of the following has the smallest size Al3+ F Na+ Mg2+?

The correct option is: a Al3+ Explanation:These are isoelectronic ions ions with same number of electrons and for isoelectronic ions greater the positive nuclear charge greater is the force of attraction on the electrons by the nucleus and the smaller is the size of the ion. Thus Al3+ has the smallest size.

Why is the Mg2+ ion smaller than the F ion?

(8 points) Why is the Mg2+ ion smaller than F–, even though they are isoelectronic? Because while having the same number of electrons, Mg2+ has 12 protons and F– has only 9. Therefore, the electron attraction to the nucleus is greater in Mg2+ making it smaller.

Do you predict Mg2+ or F to have a smaller ionic radius Why?

The fact the fluoride anion is negative and magnesium cation is positive means you've already applied electronegativity to the system in order to ionize them. So because it has more particles in pulling in the e- than Mg+ will have a smaller radius!

Which is larger Mg2+ and O2?

Mg2+ ion is smaller than O2- ion though both are iso-electronic. The nuclear charge in Mg2+ is + 12 and O2- is + 8 so with the increase in nuclear charge the size decreases and hence O2- > Mg2+.

What is the increasing order in size Mg2+?

Therefore, the arrangement of the given species in order of their increasing ionic radii is as follows: Al3+ < Mg2+ < Na+ < F– < O2– < N3–

Which has the largest ionic radius F mg2+ Na+ or o2?

Hence, the Correct Order Of Ionic Radii For Na + , Mg 2 + , F − and O 2 − is Mg 2 + < Na + < F - < O 2 - .

Do F and Na+ have the same radius?

For elements with the same number of electrons, the atom with more protons in the nucleus or the higher effective nuclear charge has the smaller atomic radius. In the case of Na+ and F-, Na+ has the smaller ionic radius because it has a stronger pull from the nucleus, causing electrons to be pulled tighter in.

Which is bigger mg2+ or Na+?

Among the iso - electronic ions Na^ + , Mg^2 + and Al^3 + , Na^ + ion has the largest size.

Which ion has the smallest radius?

Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

Which ion has largest radius?

Ionic radius increases down the group ,in the following option strontium is having the largest ionic radius as the elements arranged in periodic table is Berilyium, Magnesium, Calcium and Strontium. These elements belongs to alkali earth metals.

Which ion is smaller F or Na+?

Na+ is the smallest as it has lost an electron from its outermost shell thereby pulled a bit more towards the nucleus. F^- has the largest size. As the atomic no. Increases nuclear charge increases.

How do you find the smallest ion?

More the nuclear charge on ion, electrons are more strongly attracted and thus size decreases. Hence, among the given ions Al³⁺ is the smallest ion.

Which element has the smallest radius in order?

Atomic Size

The smallest atom on the periodic table is helium, He, and has a radius of 31 pm.

Which ion has the smallest radius which ion has the largest radius?

Therefore, the ion with the greatest atomic number has the smallest atomic radius and the ion with the smallest atomic number has the largest radius.

Which of the following ions has the smallest radius Na+ K+ mg2+ Ca2+?

Therefore, Ca2+ has the smallest ionic radius.

What is the ionic size order of Al3+ Mg2+ Na+ F?

(b) The increasing order of ionic radii is Al3+<Mg2+<Na+<F−<O2−<N3−.

Which of the following is smallest in size in Na+ F O2?

Here Na+ is having most protons so it will be having highest nuclear charge, thus smallest size.

Which is the smallest among Na+ Mg2+ Al3+ and why?

Al3+ is the smallest because it has highest number of protons (13) among Na⊕,Mg2+ and Al3+ ions, due to which effective nuclear charge is more.

Which is larger O or O2?

O and O2− have an equal atomic number which is 8. However, the two species have different numbers of electrons, O has 8 while O2− has 10. This means that the latter has larger orbitals and less tightly held outer electrons. Therefore, O2− has a larger atomic radius.

Is F or F larger?

F has a smaller radius than F− because an additional electron causes greater repulsion in F− .

What do the ions O2 F Na+ and Mg2+ are isoelectronic with?

The ions O2–, F–, Na+, Mg2+ and Al3+ are isoelectronic.

How do you arrange ions in order of increasing ionic size?

These electrons go in the outermost shells. Also, when an atom loses electrons, it clings ever more tightly to the ones it has left, further reducing the ionic radius. therefore the order of ionic radii will be: Al3+<Mg2+<Na+<F−<O2−<N3− (increasing order)

How do you arrange ions in order of increasing size?

It is fairly easy to arrange the atoms according to atomic size. We know that atomic size increases from right to left and from top to bottom in the Periodic Table. The smallest atoms are at the top right and the largest atoms are at the lower left of the Periodic Table.

What is the radius of Mg2+ and O2?

What is the order of size of O2 F?

As O2− and F− are isoelectronic, therefore, size of O2−>F− Q.

How do you find the order of ionic size?

Explanation: The ionic radii of alkali metal ions are larger than those of alkaline earth metal ions belonging to the same period. Also, the ionic radii increases down the group and decreases as we move across a period. Hence, the correct order of the ionic radii is​ Na+>Li+>Mg2+>Be2+

Which of the following will be smallest in size?

A cation is smaller is size because the lesser electrons will be more tightly held by the nucleus therefore reducing the atomic size.

Which one has the smallest size?

As the nuclear charge per electron is maximum in F−, it is the smallest in size.

Which of the following has smallest size?

An atom after losing an electron forms a cation and since the net charge on the atom increases the atomic size increases. The greater the charge on the atom smaller the size of the ion so Al(III) cation is smallest in size.

Is F the smallest ion?

Which has the largest ionic radii Na+ mg2+ or al3+ Why?

Hence, the increasing order of ionic radii is Na⁺ > Mg²⁺ > Al³⁺ > Si⁴⁺.

Which ions have the smallest radius?

Helium has the smallest atomic radius.

How do you order ions by increasing radius?

The increasing order of the ionic radius is Mn+7<V+5<Ca+2<K+Cl−<S2<P3−. As the effective nuclear charge increases, the attraction of the nucleus for the valence electrons increases and hence the ionic radii decreases.

What is the order of ionic radius?

Explanation: The ionic radii of alkali metal ions are larger than those of alkaline earth metal ions belonging to the same period. Also, the ionic radii increases down the group and decreases as we move across a period. Hence, the correct order of the ionic radii is​ Na+>Li+>Mg2+>Be2+

How do you know which ion has a larger radius?

The ionic radii of cations follow the same trends as atomic radii. They increase from top to bottom and from right to left in the Periodic Table. Thus, the ion with the largest radius is closest to the lower left corner of the Periodic Table, and that is the K+ ion.

What is the ionic radius of O2 and F?

The ionic radii of F− and O2− respectively are 1.33 ∘A and 1.4 ∘A while the covalent radius of N is 0.74 ∘A.

Which has the smallest ionic radius Na+?

How do you choose the ion with the largest ionic radius?

Ionic radius increases down the group ,in the following option strontium is having the largest ionic radius as the elements arranged in periodic table is Berilyium, Magnesium, Calcium and Strontium.

How do you arrange the atoms from smallest to largest?

Arranging the atoms

We know that atomic size increases from right to left and from top to bottom in the Periodic Table. The smallest atoms are at the top right and the largest atoms are at the lower left of the Periodic Table.

How do you arrange ions in order of decreasing ionic radius?

Among isoelectronic ions, ionic radius decreases as the positive charge increases. Therefore, the ionic radii decrease in the order: He+>Li2+>Be3+