![Chemistry](/tpl/images/cats/himiya.png)
Use your periodic table to complete the table below. The first one has been done for you.
Element
Atomic #
Mass
Protons
Neutrons
Electrons
Symbol
Iodine
53
127
53
74
54
I1-
35
17
Cl1-
Hydrogen
1
1
0
35
45
36
5
11
B3+
Oxygen
16
8
10
Element
Atomic #
Mass
Protons
Neutrons
Electrons
Symbol
Nitrogen
7
7
10
Aluminum
27
10
56
26
24
29
35
Cu1+
64
29
27
Match each of the positive ions listed with the total number of electrons that ion contains. Use your periodic table. The same answer may be used more than once.
A) 2 B) 10 C) 21 D) 23 E) 24
F) 25 G) 36 H) 48 I) 76 J) 81
Al+3 Fe+3 Mg+2 Sn+2
Li+1 Cr+3 Rb+1 Pt+2
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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Use your periodic table to complete the table below. The first one has been done for you.
Element
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