Give one word for the following.
a. Number of elements present in the shortest
period.
b. Number of elements that forms actinoid series.
c. Vertical columns of periodic table.
d. Horizontal rows of periodic table.
e. Group of elements ranging from atomic
numbers 58 to 71.
12
Answers
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0
Answer:
I don't know answer of this question
Answered by
0
Answer:
a =2 elements hydrogen and helium
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