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Answered 2009-12-15 21:47:13

Nonmetals generally are more electronegative than metals, meaning that they have a stronger pull on their electrons - thus when they form ions, metals give up electrons (forming cations) and nonmetals take up electrons (forming anions).

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Atoms of nonmetals tend to?

Atoms of non-metals tend to gain electrons and become anions.


How do cations and anions form?

atoms lose electrons to form cations. atoms gain electrons to form anions.


What conclusions can we make about the size of cations neutral atoms and anions?

Cations are smaller then neutral atoms and anions are larger.


How ions form cations and anions?

atoms lose electrons to form cations. atoms gain electrons to form anions.



What do the group 7a elements become when they react with group 1a elements?

Atoms of column 7A become anions when they react with atoms of group 1A elements, which become cations. Both the cations and the anions are monovalent. The cations and anions together form an ionically bonded compound.


How do the sizes of cations and anions relate to the atoms they form from?

Cations are formed when atoms lose electrons and hence are smaller in size than the corresponding atoms. Anions are formed when atoms gain electrons and hence are larger in size than the corresponding atoms.


What is the force that holds different atoms or ions together?

Anions and cations are held together by ionic bonds. Metal atoms are held together by metallic bonds. Nonmetals are held together by covalent bonds.


Positively or negatively charged atoms?

are called ions - cations and anions.


Do metals form positive or negative ions?

Atoms of Metals lose electrons to empty their outer shell and become positive ions or cations.Atoms of non-metals gain electrons to fill their outer shell and become negative ions or anions.


Why do atoms become ions?

Gaining or losing electrons atoms become ions (anions or cations).


Are the metal atoms cations or anions?

cations, they all ionize to a positive charge cation=+ charge anion=- charge


How does atomic radius vary with cations anions metals and nonmetals?

Cations are most often metals, as cations are positively charged ions meaning they have lostelectron(s). As a general rule, metals are on the left-hand side of the periodic table. Since cations tend to lose electrons, their atomic radius will decrease in size, as the other electrons will be "pulled in" more by the protons in the nucleus (meaning stronger bond). This results in the atomic radius decreasing.Anions on the other hand are most often nonmetals, as anions are negatively charged ions meaning they have gained electron(s). As a general rule, nonmetals are on the right-hand side of the periodic table. Since anions tend to gain electrons, their atomic radius will increase in size, as the newly added electrons will "shield" the other electrons from the nucleus, meaning they will be less attracted to the protons in the nucleus (meaning weaker bond). This results in the atomic radius increasing.Note that the above trends mentioned apply mostly to the Group A elements. Many of the transition elements for covalent bonds, meaning they share electrons with other atoms, rather than giving or taking electrons from other atoms. However, many transition metals actually form cations, although there are some exceptions.


Are anions metals?

No, I think they are only atoms.


What are the similarities metals and nonmetals have in common?

Metals and nonmetals are both in the periodic table. They both have atoms in them.


What is an atom that has a net positive or negative electric charge?

Positive atoms: cations. Negative atoms: anions


Are atoms of nonmetals among the largest atoms?

Atoms of nonmetals tend to be smaller than atoms of metals in the same period.



What happens if an atom of an element gains or loses electrons?

It becomes an ion . Atoms that lose electrons ( metals ) become positively charged and are called Cations . Atoms that gain electrons ( non-metals ) become negatively charged and are called Anions .


Why do nonmetal atoms form anions when they react to form compounds?

Non-metals have high electroaffinity, they accept electrons from other atoms (generally metals) and from anions.



Compared to metals and nonmetals how do atoms of semimetals behave when combining with atoms of other elements?

Semimetals can behave as metals do and as nonmetals do when they combine with atoms of other elements. This is where there categorization of semi metals was derived from.


What are ions and ionic bonds?

Ions are formed when atoms gain or lose electrons. Positively charged cations are formed when atoms lose electrons. Negatively charged anions are formed when atoms gain electrons. Ionic bond is the force of attraction between cations and anions.


Do in ionic bonding atoms loose or gain electrons?

Actually both. Atoms gain electrons to form negatively charged anions whereas when atoms lose electrons positively charged cations are formed. Ionic bond is the force of attraction between cations and anions


Will atoms form negative ions?

ATOMS THAT ARE NONMETALS WILL FORM ANIONS (NEGATIVE IONS) IF GIVEN THE CHANCE WHEN ELECTRONS ARE AVAILABLE FROM THE FORMATION OF CATIONS (POSITIVE IONS).THE ELECTRONS NEED A HOME, EITHER WITH THEIR ORIGINAL ATOMS, OR IF CATIONS FORM, THEN WITH ANIONS THAT MUST FORM AT THE SAME TIME.CHARGE MUST BE CONSERVED IN ANY CHEMICAL OR PHYSICAL CHANGE.A negative ion is formed when an atom gains an electron, (because electrons have a negative charge).


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