Chemistry, 18.10.2019 01:30 untouchedyannaa

Given the following cations, list them in the expected order from smallest to largest: y3+, nb3+, sb3+

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Answer from: PinkDivaGirl02

Antimony ion is the smallest and yttrium ion is the largest.

Explanation:

Atomic radius of an atom is defined as the total distance from the nucleus to the outermost shell of the atom.

An ion is formed when a neutral atom looses or gains electrons.

When an atom looses electrons, it results in the formation of positive ion known as cation.When an atom gains electrons, it results in the formation of negative ion known as anion.

As moving from left to right in a period, more and more electrons get added up in the same shell and the attraction between the last electron and nucleus increases, which results in the shrinkage of size of an atom. Hence, the size of an atom decreases.

The size of the cation is small then their neutral atom because it has less number of electrons while its nuclear charge remains the same. Thus, the nucleus attracts the electron more towards itself and leads to the decrease in size.

We are given three cations: $Y^{3+},Nb^{3+}\text{ and }Sb^{3+}$

Yttrium lies in Period 5, group 3 of the periodic table.

Niobium lie in Period 5, group 5 of the periodic table.

Antimony lies in Period 5, group 15 of the periodic table.

So, the order of atomic radii in increasing order follows:

$Sb^{3+}$

Hence, antimony ion is the smallest and yttrium ion is the largest.

Answer from: Quest

jdjxnbfb

explanation:

jjfnc fdnxnxx

Answer from: Quest

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

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Given the following cations, list them in the expected order from smallest to largest: y3+, nb3+, s...