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its based on its electronic configration ..if it has 2 or 3 valance electrons it may attract electrones
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How many valence electrons do the anions have when they bond?
This number is different for each anion.
What group in the periodic table forms anions?
The elements in group-15 , 16 and 17 have 5,6 ad 7 valence electrons respectively , so they gain electrons to form anions.
What are formed by a loss or gain of valence electrons during a chemical combination of elements?
Cations are formed by the loss of electrons, anions are formed by the gain of electrons. The force of attraction between cations and anions results in ionic bond.
What are positive and negative ions called?
Positive ions are called cations. Negative ions are called anions.
Why are anions larger?
Anions have supplementary electrons.
How many valence electrons do the anions have when they bond?
This number is different for each anion.
What group in the periodic table forms anions?
The elements in group-15 , 16 and 17 have 5,6 ad 7 valence electrons respectively , so they gain electrons to form anions.
What are formed by a loss or gain of valence electrons during a chemical combination of elements?
Cations are formed by the loss of electrons, anions are formed by the gain of electrons. The force of attraction between cations and anions results in ionic bond.
What are halides oxides and sulfates all examples of?
All of these are ions with negative charges. They are called anions. All of these anions have 8 electrons in their valence shell, which is a stable electron configuration.
How can you tell from an element's number of valence elns whether the element is more likely to form a caor an anion?
If an element has less than four valence electrons, it will tend to lose its valence electrons and form cations. If an element has more than four valence electrons, it will tend to gain electrons and form anions. An element that has four valence electrons will tend to form covalent bonds rather than ionic bonds.
What are positive and negative ions called?
Positive ions are called cations. Negative ions are called anions.
How may valence electrons atoms of can nonmetals have?
Variable; a correct answer is possible only for a specified nonmetal.
Do anions and cations share electrons during ionic bonding?
Yes anions and cations share electrons. Anions gain electrons and cations loose electrons.
What is the difference between elements that tend to form anions or form cations?
In general, metals form cations (positive ions) and non-metals form anions (negative ions.) This is because metals have fewer valence electrons, and lose them when they bond, and non-metals have more, and gain them when they bond.
Why are anions larger?
Anions have supplementary electrons.
What does the charge on the magnesium ion have to do with the number of valence electrons that an atom of magnesium has?
The charge on a magnesium ion is +2. This indicates that the two valence electrons present in a magnesium atom have been donated to form one or two anions of some other element.
The outermost electrons in an atom are called?
Valence electrons
