Please help question 1-6 please, Thank you! 1. The valence electrons are located
ID: 229735 • Letter: P
Question
Please help question 1-6 please, Thank you!
1. The valence electrons are located in the ____________ orbitals of an atom.
2. Positive ions are formed by the ____ of electrons, while negative ions are formed by the ____ of electrons.
3.
Identify the charge of the metal ion in each of the following
Al2S3
CoSO4
AgCl
VS3
NiO
Mn3(PO4)5
+3
+2
+1
+6
+5
+7
-1
-2
+4
-3
4. Electrons are shared in covalent compounds so that each atom has ____ electrons which satisfies the _____ rule.
5. The names of covalent compounds use _____ to state the nuber of atoms which is dervived from the _____ names. For example, 2 atoms would be identified as _____
6.
Polyatomic ions are ions that contain more than one ____________ in its formula.
atom
molecule
electron
ion
- A. B. C. D. E. F. G. H. I. J.Al2S3
- A. B. C. D. E. F. G. H. I. J.CoSO4
- A. B. C. D. E. F. G. H. I. J.AgCl
- A. B. C. D. E. F. G. H. I. J.VS3
- A. B. C. D. E. F. G. H. I. J.NiO
- A. B. C. D. E. F. G. H. I. J.Mn3(PO4)5
A.+3
B.+2
C.+1
D.+6
E.+5
F.+7
G.-1
H.-2
I.+4
J.-3
Explanation / Answer
1.valence electrons are located in the orbitals of outermost orbit
2.An atom of an element is convert to positive ion by loss of electrons.
Na------------ Na+ + e-
An atom of an element is convert to negaive ionby gain of electrons
Cl + e- -------------- Cl-
3.
Al2S3------------- 2 Al+3 + 3 S-2
metal atom Al is exists as Al+3 (+3)= A
CoSO4 ------------ Co+2 + SO4-2
metal atom Co is exists as Co+2. (+2) =B
AgCl ------ Ag+ + Cl-
metal atom Ag exists as Ag+ ( +1) = C
VS3--------- V+6 + S-2
metal atom exists as V+6 ( +6) = D
NiO---------- Ni+2 + O-2
metal atom exists as Ni+2 ( +2) =B
Mn3(PO4)5------------ Mn+5 + PO4-3
metal atom exists as Mn+5 (+5) =E
4,8 electons, octet ruel
5. Poly atomic ions contains morethan one atom in its formula
the answer is A.
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