13. According to atomic structure, what determines which
element will be the first and which will be the last in a
period?
Answers
Answered by
1
Explanation:
The electronic configuration of an element determines its position in Modern Periodic table . The element with one valence electrons is the first while the elements with 8 valence electrons is placed in the 18 th group of a period.
Answered by
1
Answer:
the electronic configuration of an element determines
the element with one valency first
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