Q. What is the Anomalous behaviour of beryllium
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1) Beryllium is harder than other members of its group.
2) Beryllium has higher melting and boiling point than other members of its group.
3) Beryllium does not react with water even at high temperature while other metals do.
4) Beryllium forms covalent compounds whereas other members form ionic compounds.Because of covalent character , salts of beryllium are easily hydrolysed.
5) Exceptionally small atomic and ionic size.
6) High ionisation enthalpy
7) Absence of d-orbital in its valence shell.
2) Beryllium has higher melting and boiling point than other members of its group.
3) Beryllium does not react with water even at high temperature while other metals do.
4) Beryllium forms covalent compounds whereas other members form ionic compounds.Because of covalent character , salts of beryllium are easily hydrolysed.
5) Exceptionally small atomic and ionic size.
6) High ionisation enthalpy
7) Absence of d-orbital in its valence shell.
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HLO MATE HERE IS UR ANSWER.
❤. ANOMALOUS CHARACTERS OF BERYLLIUM❤
⭐. Compounds of Be are predominatly covalent.
⭐. Be is not easily affected by air and does not decompose water at ordinary temperature.
⭐. Be is an amphoteric metal.It dissolves in alkaly solutions forming beryllates.
⭐. BeSo4 is soluble in water whereas yhe sulphates of Ca, Sr and Ba are insoluble.
⭐. Be and its salts do not respond to flame test while Ca, Sr and Ba give characteristic flame colours.
⭐. Be forms many complexes , while heavier elements do not form complexes eaisly.
⭐. Be has a maximum covalency of 4 , while others have a maximum covalency of 6 .
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