Name the element in periodi table which lies in 3 group below yittrium and 6 period between barium and hafnium and7 period between radium and rutherfordium and tell valency also...........
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lanthanum and its valency is 1
actinium anduts valency is 1
saniya4041:
its not series its name of just 2 elements asked
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lanthanam( valency 1)
actinium Anduts(valency 1)
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actinium Anduts(valency 1)
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