ATOMIC CHART 1

Reminders:            AZ E                A = mass number            Z = atomic number
                                                   E = symbol for element

~ The hyphen notation name for this element would be:
            Element                     -   A
            (name of the element) - (mass number)

~ Z = atomic number --> # of protons in an atom; whole number on P.T.

~ A = mass number --> # of protons + # of neutrons

~ In a neutral atom (does not have any + or - symbols with numbers to the top right of the
    symbol), the number of protons and the number of electrons are equal.

 

Symbol

Name

Atomic #

Mass #

# of protons

# of neutrons

# of electrons

1.)

 

calcium - 40

 

 

 

 

 

2.)

20180 Hg

 

 

 

 

 

 

3.)

 

 

53

127

 

 

 

4.)

 

 

 

 

19

20

 

5.)

 

 

 

40

 

22

 

6.)

20782 Pb

 

 

 

 

 

 

7.)

 

barium - 137

 

 

 

 

 

8.)

 

 

14

28

 

 

 

9.)

 

 

 

19

 

10

 

10.)

 

 

26

 

 

30

 

 

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