ionic bonding Flashcards by amber patel

what is an ion?

an electrically charged atom or group of atoms formed by the loss or gain of electrons

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what are negative ions called?

anions

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when do anions form?

when atoms gain electrons

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what are positive ions called?

cations

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when do cations form?

when atoms lose electrons

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all metals lose or gain electrons?

lose electrons-become positively charged ions

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all non-metals lose or gain electrons?

gain electrons-become negatively charged ions

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copper (II) formula?

Cu2+

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iron (II) formula?

Fe2+

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iron (III) formula?

Fe3+

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lead formula?

Pb2+

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zinc formula?

Zn2+

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ammonium formula?

NH4+

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what is the charge on group 5 non-metals?

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what is the charge on group 6 non-metals?

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what is the charge on group 7 non-metals?

what is hydroxides formula?

OH-

what is carbonates formula?

CO3 2-

what is nitrates formula?

NO3-

what is sulfates formula?

SO4 2-

what is the formula for hydrogen carbonate?

HCO3-

what is ionic bonding?

the strong electrostatic attraction between oppositely charged ions

do ionic substances have high or low melting and boiling points?

high because there are many strong electrostatic forces

ionic compounds are usually ….. at room temperature?

solid

are ionic compounds volatile or non-volatile?

non-volatile

are ionic compounds usually water soluble or insoluble?

water soluble

for electrical current to flow there must be what?

freely moving charged particles

when can ionic compounds conduct electricity?

in the molten state or solution because they have ions that can freely move which can carry charge

why cant ionic compounds conduct electricity in a solid state?

because the ions are in fixed positions within the lattice and they are unable to move