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Ions are atoms that have lost or gained electrons.
The number of protons in an atom remains unchanged but with loss or gain of electrons the charges becomes unbalanced, because the number of electrons is NOT equal to the number of protons.
Ions can be divided into two viz. Cations ( positively charged) and Anions ( negatively charhed(.
Here are some examples.
Sodium atom has 11 protons(+) and 11 electrons(-).
Sodium cation has 11 protons(+) and 10 electrons(-)
If we do a little sum
(+)11 - 10 = (+)1 This is indicated on the sodium cation as
Na(s) = Na^(+) + e^(-)
Similarly
Calcium atom has 20 protons(+) and 20 electrons(-).
Calcium cation has 20 protons(+) and 18 electrons(-)
If we do a little sum
(+)20 - 18 = (+)2 This is indicated on the calcium cation as
Ca(s) = Ca^(2+) + 2e^(-)
Conversely
Chlorineatom has 17 protons(+) and 17 electrons(-).
Chloride anion has 17 protons(+) and 18 electrons(-)
If we do a little sum
(+)17 - 18 = (-)1 This is indicated on the chloride anion as
Cl(g) = Cl^(-) - e^(-)
Similrly
Oxygen atom has 8 protons(+) and 8 electrons(-).
Oxide anion has 8 protons(+) and 10 electrons(-)
If we do a little sum
(+)8 - 10 = (-)2 This is indicated on the chloride anion as
O(g) = O(2-) - 2e^(-)
So ions are charged atoms.
Or
Ions have a charge, Atoms have no charge.
Chemically, charged atoms are no longer atoms but IONS.
What else can I help you with?
When atoms or molecules gain or lose electrons they can be best described as what?
When atoms or molecules gain or lose electrons, they are best described as becoming ions. Ions are charged particles that are formed through the process of gaining or losing electrons.
Why can magnesium hydroxide be described as a strong base even though it is only slightly soluble in water?
Magnesium hydroxide may be considered a strong base because of its ability to fully dissociate into magnesium ions and hydroxide ions in solution, leading to high pH. Even though it is slightly soluble, the dissociated hydroxide ions contribute to its alkaline properties.
What group of compounds is described as insoluble?
One group of compounds that is commonly insoluble is metal sulfides. These compounds are generally not soluble in water and form solid precipitates when metal ions react with sulfide ions.
Pure liquid water is described as neutral because the water's pH is what?
Pure liquid water is considered neutral because its pH is 7. This means that the concentration of hydrogen ions (H+) is equal to the concentration of hydroxide ions (OH-) in the water.
Ketones release hydrogen ions when dissolved in water so they can be described as what?
This is not true. The hydrogen atoms of simple ketones are bound securely to the carbon atoms by covalent bonds and do not ionize in water. If it were true, you would describe them as acids, but they are not.
Ions may be described as simple or complex?
In chemistry are known simple ions but also complex ions.
When atoms or molecules gain or lose electrons they can be best described as what?
When atoms or molecules gain or lose electrons, they are best described as becoming ions. Ions are charged particles that are formed through the process of gaining or losing electrons.
Why are acids deacribed as corrosive?
acids are described corrosive because they have positive hydrogen ions which has the tendency to pull negatively charged ions.
A sample of tap water consists of water fluoride ions calcium ions and several other dissolved ions The ions are evenly distributed throughout the water Which term or terms could be used to descr?
The sample of tap water could be described as a homogeneous mixture because the ions are evenly distributed throughout the water. Specifically, it could also be described as a solution, as the ions are dissolved in the water.
What scientist described a base as a compound that dissociates in water producing hydroxide ions?
Arrhenius
What is described by the terms body-centered cubic and face-centered cubic?
The arrangement of atoms or ions in a crystal.
What attracts an ion to form a ionic bond?
Positively charged ions (for example, Na+) attract negatively charged ions (such as Cl-) because of the electrostatic force described by Coulomb's Law.
What does crystalline mean?
Crystalline is a description used for a solid which has its atoms (or ions/molecules) arranged in a repeating pattern. A crystal can be described as a crystalline solid.Crystalline is a description used for a solid which has its atoms (or ions/molecules) arranged in a repeating pattern.A crystal can be described as a crystalline solid.
Why can magnesium hydroxide be described as a strong base even though it is only slightly soluble in water?
Magnesium hydroxide may be considered a strong base because of its ability to fully dissociate into magnesium ions and hydroxide ions in solution, leading to high pH. Even though it is slightly soluble, the dissociated hydroxide ions contribute to its alkaline properties.
What group of compounds is described as insoluble?
One group of compounds that is commonly insoluble is metal sulfides. These compounds are generally not soluble in water and form solid precipitates when metal ions react with sulfide ions.
What does it mean to say that the solubility of a salt represents a dynamic equilibrium?
When the solubility of a salt is described as a dynamic equilibrium, it means that the rate of dissolution of the salt into its ions is equal to the rate of precipitation of the salt from its ions. In other words, there is a balance between the ions dissolving and re-forming the solid salt, resulting in a constant concentration of dissolved ions in the solution.
What is the force which binds oppositely charged ions together?
The force that binds oppositely charged ions together is called electrostatic attraction. This force is due to the attraction between the positive and negative charges on the ions. It is responsible for holding ions together in ionic compounds.
