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“We must trust to nothing but facts: These are presented to us by Nature, and cannot deceive. We ought, in every instance, to submit our reasoning to the test of experiment, and never to search for truth but by the natural road of experiment and observation.” ― Antoine Lavoisier, Elements of Chemistry

Monday, 4 May 2015

Periodic Table Worksheet




1. Compare protons, neutrons and electrons



Protons
Neutrons
Electrons

Charge



Location in
Atom




2. Look at the figure below.       
       2

      He
     4.0

a.  What is the top number called? ______________
b.  What is the bottom number called? _____________

3. How do you find the number of protons?

4. How do you find the number of electrons?

5. How do you find the number of neutrons?

6. Complete the following:
                a.  Nitrogen                                                                       
                                Atomic Number   ____
                                Atomic Mass       ____
                                Protons               ____
                                Neutrons             ____
                                Electrons             ____
                b.  Sodium                                                                                          
                                Atomic Number   ____
                                Atomic Mass       ____
                                Protons               ____
                                Neutrons             ____
                                Electrons             ____
                               
7. How is the Periodic Table of the Elements organized?



8. Where are the metals, nonmetals and metalloids located on the Periodic Table?


9. If the statement is true write true. If the statement is false, change the underlined
word or words to make the statement true.

____________________ 1. The majority of elements in the periodic table are nonmetals.

____________________ 2. The reactivity of metals tends to increase as you move from left to right across the periodic table.
____________________ 3. Zinc, iron, nickel, and copper are examples of transition metals.

____________________ 4. The elements of Group 1 of the periodic table are called the lanthanides.

____________________ 5. Most metals are good conductors of electric current and heat. 


10. Name and configure the electrons of these following elements according to KLMN and spdf configuration.  Give the location/position of  the  element in the periodic table.

a)         20Ca
Name :
KLMN configuration :


Spdf configuration :

b)        54Xe
Name :
KLMN configuration :



Spdf configuration :


c)         46Pd
Name :
KLMN configuration :



Spdf configuration :



d)        64 Gd
Name :
KLMN configuration :



Spdf configuration :



e)        28Ni
Name :
KLMN configuration :





Spdf configuration :

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