Which has larger radius Mg2+ or Na+?

Does Mg2+ or Na+ have a smaller radius? The Mg2+ ion will have a smaller radius. Magnesium has one more proton than sodium, and therefore, with the same number of electrons and 1s orbital shielding, the Zeff for magnesium is greater, and therefore Mg2+ has the smaller ionic radius.

Which ion has a smaller radius Mg2+ or Na+?

Explain your answer. mg2+ would be the smaller ion this is because each ion has the same number of electrons however mg2+ has a greater number of protons and therefore is more charge dense and the outer electrons feel a greater pull from the nucleus.

What is the atomic radius of Mg2+?

Metallic, Covalent and Ionic Radii(r)*

What is the radius of Na+?

227 pm
Sodium/Van der Waals radius

Which has largest radius?

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 is larger Mg2+ or F?

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.

Which is larger Na+ or F?

Na+ has smaller size than F- because both Na+ and F- have equal number of electrons i.e.10 . After losing an electron Na will have less electron cloud and more effective nuclear charge whereas F after gaining an electron will have less effective nuclear charge than the parent atom so the size increases .

Is mg+ bigger than na?

The largest ion is Na atom. Due to this the Na atom has largest size among the given atoms or ions.

Which is bigger Br or Se2?

Answer: The Br− ion is smaller than the Se2− ion because the Br− ion has a larger nuclear charge and more extra electrons than the Se2− ion. …

Is CA bigger than na?

Calcium (atomic # = 20) has a bigger atomic radius than Sodium (atomic # = 11) because it has a greater number of electrons, which are also found farther from the nucleus because of the orbital in which calcium’s valence electrons are found.

Which is bigger Na or RB?

Generally, the atomic radius increases down the group. Both Rb and Na are in the same group, group 1. Rb is below Na and thus we expect Rb to have a…

Why does Mg2 + have a smaller ionic radius than sodium?

In terms of ionic size, we’re looking at Zeff, which is the effective nuclear charge, for the ions. Magnesium has one more proton than sodium, and therefore, with the same number of electrons and 1s orbital shielding, the Zeff for magnesium is greater, and therefore Mg2+ has the smaller ionic radius.

Is the atomic radius of Mg2 + smaller than Al and Al3 +?

These two elements are known to show the so called ‘diagonal relationship’ in some of their chemical properties due such closeness in atomic size. Despite the Mg atom having a slightly larger size, the Mg2+ ion is marginally smaller in size than the Li+ ion because of its higher nuclear charge.

What are the atomic radii of Li and MG?

Interestingly, the atomic radii of Li and Mg are 1.52 and 1.60 A respectively, and here also the difference is quite small. These two elements are known to show the so called ‘diagonal relationship’ in some of their chemical properties due such closeness in atomic size.

Which is larger, NA + or MG + +?

For sure, Na+ has larger radius than Mg++. Radius is defined as the distance from the nucleus to the boundary of the surrounding cloud. Firstly, you should know that, in an uncharged atom, the number of protons is equal to that of electrons.