WorksheetsElectron Configuration of Ions and Electronegativity
Total questions: 27
Worksheet time: 27mins
Which elements usually form cations?
non-metals
metals
any elements
noble gases
The element Ca will form a cation. What would be the noble gas that this cation would have the same electron configuration as ?
Ne
Ar
He
Xe
When iodine forms an iodide ion, into which orbital would the electron be going?
5s
4s
5p
3d
It wont gain an electron, it would lose one.
Which electron configuration belongs to a Chloride (Cl-) ion?
1s2 2s2 2p6 3s2 3p5
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p7
1s2 2s2 2p6 3p7
An aluminium ion would have which electron configuration?
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p1
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6
When Zinc becomes an ion, it loses its electrons from the ____ orbital.
1s
4s
3d
3p
What is the electron configuration of Ca+2?
1s2 2s2 2p6 3s2 3p6 4s2
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p6 4s4
1s2 2s2 2p6 3s2 3p6 4s2 4p2
The Ca+2 ion is isoelectronic with what -1 ion?
F-1
Cl-1
Br-1
K-1
Ar-1
Which of the following are isoelectronic with O-2 ion?
Flourine
Mg+1
Flouride
Nitride
Neon
What is the electron configuration of the Sc+2 ion? (Element #21).
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p6 3d2
1s2 2s2 2p6 3s2 3p6 4s2
1s2 2s2 2p6 3s2 3p6 4s2 3d2
What is the electron configuration of the Sn+3 ion? (element #50)
1s2 2s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d9
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p2
1s2 2s2 2p6 3s2 3p6 4s2 4d10 4p6 5d10
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10
What is the electron configuration of Cu2+?
[Ar]3d94s2
[Ar]3d104s1
[Ar]3d9
[Ar]3d10
Se, S, and O
Electronegativity trends are the same as:
Atomic radius trends
Ionization energy trends
Both of these
None of these
What does electronegativity do as you go across a period?
decrease
no pattern
stay the same
increase
Why does electronegativity decrease as you go down a group?
As you go down a group, the outer electrons are further away from the nucleus
As you go down a group, the nucleus is less able to attract electrons in a bond
Both of these
None of these
What type of bond is depicted in the image?
Covalent
Polar Covalent
Ionic
What type of bond is depicted in the image?
Covalent
Polar Covalent
Ionic
Which bond shares electrons evenly?
non polar Covalent
Polar Covalent
Ionic
Which bond shares electrons unevenly?
Covalent
Polar Covalent
Ionic
The difference in electronegativity affects the type of bond will be formed. What type of bond would be formed with a difference of 0.3?
Covalent
Polar Covalent
Ionic
Based on the data in the table above, which of the following correctly predicts the relative electronegativity of the elements X, Y, and Z, and provides the correct reason?
X > Y > Z because smaller elements have a stronger attraction between the nucleus and valence electrons
X > Y > Z because smaller elements have a weaker attraction between the nucleus and valence electrons
Z > Y > Z because larger elements have a stronger attraction between the nucleus and valence electrons
Z > Y > Z because larger elements have a stronger attraction between the nucleus and valence electrons
