(?) Name that Group (?)
This group is known as Group 1 on the periodic table and consists of elements such as lithium, sodium, and potassium among others.
What are the alkali metals?
1
H
1.008
????????
Hydrogen
Hydrogen (H)
1
OH
16 + 1 = ~17
OH
O: 16/17 = .941 = 94.1%
H: 1/17 = .059 = 5.9%
This group is known as Group 18 on the periodic table and contains elements such as helium, krypton, and xenon among others.
What are the noble gases?
19
K
39.098
?????????
Potassium
Magnesium (Mg)
2
NaCl
23 + 35.5 = ~58.5
NaCl
Na: 23/58.5 = .393 = 39.3%
Cl: 35.5/58.5 = .607 = 60.7%
These elements are found in the middle of the periodic table (d-block) and span Groups 3-12.
What are the transition metals?
??
W
183.85
????????
74
Tungsten
Phosphorus
4
H2O
(1 x 2) + 16 = ~18
H2O
H: (1 x 2)/18 = .111 = 11.1%
O: 16/18 = .889 = 88.9%
These elements are located along a "staircase" and create a divider between the metals and nonmetals.
What are the metalloids?
??
Hg
200.59
???????
80
Mercury
Lead
4
Ca3(PO4)2
(40 x 3) + (31 x 2) + (16 x 8) = ~310
Ca3(PO4)2
Ca: (40 x 3)/310 = .387 = 38.7%
P: (31 x 2)/310 = .2 = 20%
O: (16 x 8) = .413 = 41.3%
These element series separate themselves from the pack.
What are the lanthanides and the actinides?
??
??
[???]
Darmstadtium
110
Ds
[269]
Helium
2
CuSO4 x 7 H2O
63.5 + 32 + (16 x 11) + (1 x 14) = ~285.5
CuSO4 x 7 H2O
Cu: 63.5/285.5 = .222 = 22.2%
S: 32/285.5 = .112 = 11.2%
O: (16 x 11)/285.5 = .616 = 61.6%
H: (1 x 14)/285.5 = .049 = 4.9%