1) Place the elements Rb, Cs, K, Na in order of increasing metallic character? 2

ID: 1067145 • Letter: 1

Question

1) Place the elements Rb, Cs, K, Na in order of increasing metallic character?

2) Identify the most reactive alkali metal with water? A) Li B) Na C) K D) Cs E) Rb

3) Write reaction that represents the second electron affinity of S?

4) Draw two valence orbital diagrams that represents the ground state Se with a 2- charge and Zn?

5) Give the ground state electron configuration for Cd, Rb, I, and Ba ?

6) Place the following elements: N, F, As, in order of increasing Ionic energization?

7) Identify the number of valence electrons in Cl -1?

1) You have to take a look to the periodic chart, Rb, Cs, k and Na are in row, the order is

Na < K < Rb < Cs (most metallic)

2) Answer is Cs

This is because the reactivity increases as you go down in the periodic table

3.)

Second affinity is

S- + e- === S-2

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