Exam 8: The Periodic Table: Structure and Trends

Given the three reactions shown below, pick the best answer. I. K + O₂→KO₂ II. 2 K + 2 H₂O→2 KOH + H₂ III. 2 NaOH + H₂SO₄→Na₂SO₄ + 2 H₂O

Which species is isoelectronic with Al?

The correct ground state electron configuration for Ni²⁺ is:

Which series shown below is correctly arranged in order of increasing ionization energy?

The ground state electron configuration of Ca is:

Which species listed below is not isoelectronic with Br^{1 -} ?

Which element has the valence electrons 4s²3d²?

How many valence electrons does the ground state of P have?

Which of the following species is not isoelectronic with Na⁺?

Arrange the ions Ca²⁺, Cl^{1 -} , K¹⁺ and S^{2 -} in order of increasing size .

Arrange the elements Ne, P and K in order of increasing first ionization energy .

Element "Q" is a third period element and has the following successive ionization energies. What is element "Q"? IE₁ IE₂ IE₃ IE₄ IE₅ IE₆ 577 kJ/mol 1816 kJ/mol 2744 kJ 11,576 kJ/mol 14,829 kJ/mol 18,375 kJ/mol

Which series of species shown below is arranged in order of increasing ionization energy?

Exhibit 8-1 The following question(s) relate to the diagram below: Refer to Exhibit 8-1. If all the boxes shown contain as many electrons as possible, what neutral element has that energy level diagram?

Which of the following is true? I. A neutral atom is larger than its corresponding cation. (for example: Na > Na⁺) II. A neutral atom is larger than its corresponding anion. (for example: O > O^{2 -} ) III. Ionic radii increase down a group. (for example: Li⁺

Which species shown below is the largest?

Which of the following is not isoelectronic with the rest?

Exhibit 8-1 The following question(s) relate to the diagram below: Refer to Exhibit 8-1. Given the three statements below, pick the best answer. I. The highest energy electron for Al would be in box F. II. The highest energy electron for Be would be in box B. III. The highest energy electron for He would be in box B.

How many electrons would be in the n = 3 level for a Si atom?

Which species from the list below is isoelectronic with Na¹⁺?