Question 14 of 48intermediate🔧 ApplyShort Answer2 marks

In terms of period and group where would you locate the element with Z=114?

Correct Answer

The element with Z=114 belongs to the seventh period and Group 14 of the Periodic Table.

Exercise: EXERCISES | Q: 3.5 | (Page 23)
For More Understanding

Explanation

The seventh period corresponds to the highest principal quantum number n=7n=7 and involves the filling of 7s, 5f, 6d, and 7p orbitals. The period ends at Z=118, which is a noble gas (Group 18). Since Z=114 is four elements before the end of the period, its last electron enters the 7p orbital, placing it in Group 14.

Solution Steps

  1. Step 1: Identify the period. The highest principal quantum number for Z=114 is n=7n=7, as its electrons fill the 7s, 5f, 6d, and 7p orbitals. Thus, it is in the seventh period.

  2. Step 2: Identify the group. The seventh period ends at Z=118 (Group 18). Counting backwards: Z=117 is Group 17, Z=116 is Group 16, Z=115 is Group 15, and Z=114 is Group 14.

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