Chemistry, 25.10.2019 02:43 zainababbas25

Enter the symbol of a sodium ion, na+, followed by the formula of a sulfate ion, so42−. separate the ions with a comma only—spaces are not allowed. express your answers as ions separated by a comma.

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Answer from: Mackjrmario

The respective symbols of sodium and sulphate ions are $\boxed{{\text{N}}{{\text{a}}^ + },{\text{ SO}}_4^{2 - }}$ .

Further explanation:

The species that are produced after loss or gain of electrons are known as ions. Since ions are charged entities, these can be either positively charged or negatively charged. The positively charged ions are formed by the loss of electrons from the neutral atom and are known as cations. The negatively charged ions are called anions and are formed by the gain of electrons to the neutral atom.

The formation of anion occurs as follows:

${\text{A}}\left( {{\text{Neutral atom}}} \right) + {e^ - } \to {{\text{A}}^ - }\left( {{\text{Anion}}} \right)$

The formation of cation occurs as follows:

${\text{C}}\left( {{\text{Neutral atom}}} \right) - {e^ - } \to {{\text{C}}^ + }\left( {{\text{Cation}}} \right)$

The atomic number of Na is 11 so it has a configuration of $1{s^2}2{s^2}2{p^6}3{s^1}$ . It easily loses its 3s electron to form ${\text{N}}{{\text{a}}^ + }$ whose configuration becomes $1{s^2}2{s^2}2{p^6}$ . These ions are beneficial for heart activity, regulation of blood and body fluids and in transmission of nerve impulses. The formation of ${\text{N}}{{\text{a}}^ + }$ occurs as follows:

${\text{Na}}\left( {1{s^2}2{s^2}2{p^6}3{s^1}} \right) - {e^ - } \to {\text{N}}{{\text{a}}^ + }\left( {1{s^2}2{s^2}2{p^6}} \right)$

${\text{SO}}_4^{2 - }$ is a polyatomic ion that involves a central sulphur atom surrounded by four oxygen atoms and has a charge of -2 on it. These ions are used as cleansing agents in soaps and shampoos.

Learn more:

Balanced chemical equation: Identify the precipitate in the reaction:

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Ionic compounds

Keywords: ions, cations, anions, loss, gain, electrons, Na, Na+, A, C, A-, C+, atomic number, configuration, formation.

Answer from: Quest

Anions are negative charged ions

Answer from: Quest

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.

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