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A positive ion (cation) is formed by removing electron(s) from an atom or group of atoms until there are fewer electrons than protons.

A negative ion (anion) is formed when an atom or group of atoms gains electron(s) until there are more electrons than protons.

Only non-metals form negative ions - this ability (to gain electrons) is intrinsic to the nature of non-metals.

Only metals form positive ions - this ability (to lose electrons) is intrinsic to the nature of metals.

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What is a ionic compound formed from the negative ions of and acid and the positive ions of a base?

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A negative ion (anion) is formed after gain of electrons in the atom.A positive ion (cation) is formed after loss of electrons from the atom.


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When positive and negative ions attract each other, an ionic bond is formed. Ionic bonding refers to the complete transfer of valence electron between atoms.


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Yes, the cation is a positive ion; ex.: H+, Ca2+, (UO2)2+.


What is the difference between a negative and a positive?

positive ions carry positive charge and negative ions carry negative charge


Which of the following are always larger than the neutral atoms from which they are formed.. A. positive ions B. negative ions C. cations D. none of the above?

B. negative ions. Negative ions are formed when neutral atoms gain electrons, increasing their size due to the additional electron(s) while positive ions or cations are formed when neutral atoms lose electrons, reducing their size.


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What is a repeating pattern of positive and negative ions held together?

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