1. write the full electron configuration for te following ca^2+, Ga^2+, S^2- a. draw pictures...

Question:

1. write the full electron configuration for te following

ca^2+, Ga^2+, S^2-

a. draw pictures of the s orbital and p orbitals below

b. which subshells are being filled in each of the following regions of the periodic table

groups 1 and 2

the lanthanides and actinides

c. how many valence electrons do the following atoms contain

S, Ba, Ar

d. arrange the following species in order of increasing radius

Ca, Mg, Sr

K, Ga, Ca

e. Place the following elements in order of increasing ionization energy

Ba, Sr, Ca

Si, Na, Mg

K, Ca, Rb

f. Rank the following elements in order of increasing metallic character

K, Ca, Rb

Periodic Properties of Elements:

Elements in the modern periodic table, lie in horizontal periods and vertical groups.

Their physical and chemical properties vary periodically in periods and groups according to the modern periodic law.

The variation of the effective nuclear charge and atomic size across a period and group cause changes in other properties as well.

Answer and Explanation: 1

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(1) {eq}\rm Ca^{2+} = [ Ar ] = 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6} {/eq}

{eq}\rm Ga^{2+} = 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{1} {/eq}

{eq}\rm...

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The Periodic Table: Properties of Groups and Periods

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Chapter 3 / Lesson 1
182K

Learn about the organization of the periodic table into groups and periods and how these differ. Also learn the history of the periodic table and its properties.


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