For each of the following ions, indicate the total number of protons and electro

Question

For each of the following ions, indicate the total number of protons and electrons in the ion. For the positive ions in the list, predict the formula of the simplest compound formed between each positive ion and the oxide ion. For the negative ions in the list, predict the formula of the simplest compound formed between each negative ion and the aluminum ion.

(c)    Cs+

(d)    Sc3+

(e)    Cu+

(f)    Ba2+

(h)    P3?

protons     electrons     For each of the following ions, indicate the total number of protons and electrons in the ion. For the positive ions in the list, predict the formula of the simplest compound formed between each positive ion and the oxide ion. For the negative ions in the list, predict the formula of the simplest compound formed between each negative ion and the aluminum ion.

Explanation / Answer

Sc3+
protons = 18
electrons = 18 - 3 = 15
compound Sc2O3

Cs+
protons = 55
electrons = 55-1=54
compound = Cs2O

I-
protons = 53
electrons = 53 + 1 =54
compond = AlI3

Cu+
protons = 29
electrons = 29 - 10= 28
compond Cu2O

P3

protons = 15
electrons = 18
P2O3

S2

protons = 16
electrons = 18
SO2

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