# Is Na+ or Mg2+ bigger?

## Is Na+ or Mg2+ bigger?

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

Value. 0.65 Å Range: Table – link Å Organism.

### Which has more radius Na or Mg?

Na is larger than Mg. From our rules we know that the further down the element is on the periodic table the larger the radius!

Which ion has the largest radius Na+ Mg2+?

## Why is the radius of Mg2+ less than Na+?

So, the nucleus of Mg 2+ ion having more +ve charge attracts the electrons with more electrostatic attractive force towards the nucleus compared to Na+ ion. That means per electron attractive force of Mg2+ ion is greater than that of Na+ ion. So, the ionic radius of Mg2+ is smaller than that of Na+.

Which is smaller between Na+ and Mg2+?

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.

### Do Mg2+ and Na+ have the same ionic 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 has a smaller radius Na or Mg?

Magnesium atom is smaller than sodium atom because the nuclear charge of Magnesium ( 12+ ) is higher than that of Sodium ( 11+ ). Magnesium nucleus will attract the electrons more toward it and therefore, shrinking the size of the atom.

## Why does Mg have a smaller atomic radius than Na?

Atoms of both elements have three electron shells Na : 2 8 1 : Mg : 2 8 2. But the nuclear charge of sodium is + 11 and that of magnesium is + 12. Hence the electron shells are pulled inward more strongly in Mg atom than in Na atom. Hence Mg atom is smaller than Na atom.

Which of the following has the largest radius a Na+ B Mg2+ C O2 D a13+?

Expert-verified answer Na+ is the largest ion in this group because Na+ has only one electron less than the number of protons it has whereas Mg has 2 and Al has 3 less electrons than their respective proton numbers,so the shielding effect is more in Na+,thus larger size.

### Does Mg2+ and Na+ have the same ionic radius?

What is the atomic radius of carbon?

170 pmCarbon / Van der Waals radius
Carbon is in group IV A of the periodic table with atomic number 6, an atomic weight of 12.011, and a density of 2.26. It melts at 3727 C. The electronic configuration of C is (1s)2(2s)2(2p)2, and the atomic radius is 0.0914 nm.

## Why is mg2+ smaller than its corresponding atom?

Which is smaller Na or Mg?

Since atomic number of magnesium is more than sodium but the numbers of shells are same, the nuclear pull is more in case of Mg atom. Hence its size is smaller than sodium.

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

The correct answer is option (i) – Al3+ 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.

What will be the increasing ionic radius order of following ions O2 − Na+ Mg2+ and F −?

The correct order of increasing ionic radii is : Mg2+ < Na+ < F− < O2−.

## What is the atomic radius of Na?

227 pmSodium / Van der Waals radius

How do you find atomic radius?

The atomic radius is calculated by measuring the distance between the nuclei of two identical atoms bonded together. Half this distance is the atomic radius.

### What is the ionic radius of Na+?

Which atom is bigger Na or M?

a) Sodium is bigger than magnesium at it has lesser nuclear charge so there is less force of attraction between nucleus and valence electrons and less effective nuclear charge. It is, therefore bigger in size.

## Which is the smallest size Na+ or Mg2+?

Which has smallest Na+ Mg2+ Al3+ Cl?

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.

### Which ion has the lowest radius from the following ions Na+ Mg2+ Al3+ Si4+?

The order of magnitude of ionic radii of ions Na+,Mg2+,Al3+ and Si4+ is [MP PMT 1996] Na+>Mg2+>Al3+>Si4+. All are isoelectronic but nuclear charge per electron is greatest for Si4+. So it has smallest size and nuclear charge per electron for Na+ is smallest.

Which of the following order is correct Mg2+ Na+?

## What is atomic radius of carbon?

170 pmCarbon / Van der Waals radius