Atomic no. and atomic mass
Asked by
| 19th Mar, 2008,
09:09: AM
Expert Answer:
it is so because atomic no. tell s the no. of electrons , no. of valence electrons . n electronic confg. of an element.
all these determine properties of an element so chemical n physical properties of an element r periodic func of their atomic no.
atomic mass tells no. of protons n neutrons so arrangement acc to it cannot justify a few things to arrange elements as position of isotopes nrare earth metals
Answered by
| 21st Dec, 2017,
12:12: PM
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