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Lorico [155]
3 years ago
13

Use the periodic table to find the number of valence electrons for calcium (Ca) aluminum (Al) rubidium (Rb) oxygen (O) sulfur (S

) and iodine (I).
then use that information to predict the formula for each of the following compounds: Calcium oxide, aluminum iodide, rubidium sulfide, and aluminum oxide.
Chemistry
1 answer:
fgiga [73]3 years ago
4 0

Answer:

Calcium (Ca) => 2

Aluminium (Al) => 3

Rubidium (Rb) => 2

Oxygen (O) => 2

Sulphur (S) => 2

Iodine (I) => 1

<em><u>Formulae</u></em>

<em>Calcium</em><em> </em><em>oxide</em><em> </em><em>:</em><em> </em>CaO

<em>Alumin</em><em>ium</em><em> </em><em>iodide</em><em> </em><em>:</em><em> </em>AlI3

<em>Rubidi</em><em>um</em><em> </em><em>sulphide</em><em> </em><em>:</em><em> </em>RbS

<em>Alum</em><em>inium</em><em> </em><em>oxide</em><em> </em><em>:</em><em> </em>Al2O3

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