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3 years ago

Which of the following have the most similar properties?

Chemistry

1 answer:

rjkz [21]3 years ago

6 0

Answer:

Option-B (Carbon and Silicon)

Explanation:

Among the given pairs only carbon and silicon have the most similar properties. This is because,

Sodium and Magnesium belong to different groups. Sodium present in Group I has one electron in its valence shell and capable of transferring only one electron while, Magnesium present in Group II have two electrons in its valence shell and is capable of donating two electrons. Hence, both show different properties.

Example:

2 Na + Cl₂ → NaCl

Mg + Cl₂ → MgCl₂

As shown in reactions when Sodium and Magnesium are treated with Cl₂ they give a products with different proportions.

Carbon and Silicon show almost same properties because both belong to Group IV hence both are capable of forming four bonds. Also, they share the same property of self linkage in making a long chains.

Argon and Chlorine also belong to two different groups. Argon is present in Group VIII (Noble Gases) and Chlorine is present in Group VII (Halogens). Hence, Argon is an inert specie which is non reactive while Chlorine gives different reaction easily.

Potassium and Calcium belong to different groups. Potassium present in Group I has one electron in its valence shell and capable of transferring only one electron while, Calcium present in Group II have two electrons in its valence shell and is capable of donating two electrons. Hence, both show different properties.

Example:

2 K + Cl₂ → KCl

Ca + Cl₂ → CaCl₂

As shown in reactions when Potassium and Calcium are treated with Cl₂ they give a products with different proportions.

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Which ion does not have a noble gas configuration in its ground state? which ion does not have a noble gas configuration in its

Luda [366]

Answer: Option (d) is the correct answer.

Explanation:

The atomic number of Al is 13, so the electronic configuration of $Al$ is as follows.

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{1}$

= $[Ne]3s^{2}3p^{1}$

$Al^{3+}$ = [Ne]

The atomic number of Sc is 21, so the electronic configuration of $Sc$ is as follows.

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{1}$

= $[Ar]4s^{2}3d^{1}$

$Sc^{3+}$ = [Ar]

The atomic number of As is 33, so the electronic configuration of $As$ is as follows.

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{10}4p^{3}$

= $[Ar]4s^{2}3d^{10}4p^{3}$

$As^{3-}$ = $[Ar]4s^{2}3d^{10}4p^{6}$ = [Kr]

The atomic number of Ga is 31, so the electronic configuration of $Ga$ is as follows.

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{10}4p^{1}$

= $[Ar]4s^{2}3d^{10}4p^{1}$

$Ga^{3+}$ = $[Ar]3d^{10}$

Therefore, we can conclude that galium (Ga) ion does not have a noble gas configuration in its ground state.

4 0

2 years ago

Read 2 more answers

Water can be a solid

Degger [83]

Explanation:

Transpiration: This is the evaporation of liquid water from plants and trees into the Earth's atmosphere. Nearly all water that enters the roots transpires into the atmosphere. Sublimation: This is the process where ice and snow (a solid) changes into a gas without moving through the liquid phase

3 0

3 years ago

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The Ostwald process for the commercial production of nitric acid from ammonia and oxygen involves the following steps:

bagirrra123 [75]

Answer:

$12 NH_3 (g)+ 21 O_2 (g) + \longrightarrow 14 H_2O (l) + 8 HNO_3 (g) + 4 NO (g)$