Is calcium smaller than magnesium?

However, a magnesium ion has a smaller radius than a calcium ion. This means that a magnesium ion polarises a carbonate ion more than a calcium ion does. Therefore, magnesium carbonate is easier to decompose than calcium carbonate and does so at a lower temperature.

Why is magnesium ion smaller than sodium ion?

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.

Is a sodium ion bigger than a magnesium ion?

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

Which ion is larger Cu+ or Cu2+?

Cu+ is larger than Cu2+. Cu2+ has a smaller cationic radius due to stronger hold of the nucleus on the remaining 27 electrons after the loss of two as compared to Cu+ where only one electron is lost and the hold of nucleus is less.

Which is smaller F or F?

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

Is O or O2 smaller?

Answer. Answer: O2− is larger than O because the increase in electron repulsions that accompany addition of an electron causes the electron cloud to expand. O2− is larger than O because O is neutral but O2− has a charge 2−.

Is N3 bigger than O2?

N3- is bigger than O2-, but it also has more charge.

Why is F ion smaller than O2?

F-ion is smaller when compared with O2-ion because of the larger nucleus charge of the F-ion. This is because of the presence of more protons in F-ion that pulls the electrons on the shell’s outside, thus making it smaller.

Is Al3+ smaller than Mg2+?

As they have equal number of electrons the electrons are not involving in determination of atomic radius. Hence atomic radius is totally depended on effective nuclear charge. Therefore radius of Al3+ is less than Mg2+.