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 |
|