Chemistry, 06.10.2019 18:10 homeschool0123

Which of the following ions are likely to form?
mn3+
n3−
zn4+
li2+
k−

Answers: 3

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Answer from: lucyfox8165

The ion that is most likely to form is $\boxed{{{\text{N}}^{3-}}{\text{ ion}}}$ .

Further explanation:

Octet rule:

Lewis structure for any atom or molecule depicts the valence electrons as dots around the element’s symbol present in the molecule along with the bonds that connect them. Every element tries to complete an octet except the hydrogen atom. Every element in the Lewis structure tries to attain eight electrons in its valence shell by transfer or share of electrons. This rule is known as the octet rule. It only applied on main s and p subshells and not applied on d and f subshells.

1. The electronic configuration of ${\text{M}}{{\text{n}}^{3+}}$ ion,

$\left[{{\text{Ar}}}\right]3{d^4}$

Since ${\text{M}}{{\text{n}}^{3+}}$ ion has no fully-filled d-orbital thus it is not most likely to form.

2. The electronic configuration of ${{\text{N}}^{3-}}$ ions,

$\left[{{\text{He}}}\right]2{s^2}2{p^6}$

Since ${{\text{N}}^{3-}}$ ion has eight electrons in its valence shell and it is fully filled, therefore, it follows the octet rule, and it is most likely to form.

3. The electronic configuration of ${\text{Z}}{{\text{n}}^{4+}}$ ion, $\left[{{\text{Ar}}}\right]3{d^8}$

The ${\text{Z}}{{\text{n}}^{4+}}$ ion has no fully-filled d-orbital, and thus it is not most likely to form.

4. The electronic configuration of ${\text{L}}{{\text{i}}^{2+}}$ ion,

$1{s^1}$

The ${\text{L}}{{\text{i}}^{2+}}$ has no fully-filled s-orbital, and also it does not follow octet rule. Thus it is not most likely to form.

5. The electronic configuration of ${{\text{K}}^-}$ ion,

$\left[{{\text{Ar}}}\right]4{s^2}$

The ${{\text{K}}^-}$ ion does not have eight electrons in its valence shell, and thus it is not most likely to form.

Learn more:

1. Determine the Lewis structure of butanal.:

2. Determine the reason that causes water molecule a bent shape.:

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Octet rule

Keywords: Periodic table, electronic configuration, Mn3+, N3−, Zn4+, Li2+, K, magnesium, potassium, lithium, nitrogen, zinc, and octet rule.

Answer from: Quest

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

Answer from: Quest

i think tornado but not 100%

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Which of the following ions are likely to form?
mn3+
n3−
zn4+
li2+
k−...

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