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WorksheetsAtomic structure
Total questions: 10
Worksheet time: 54mins
Indicate which electronic configuration is not possible
1s2 2s2 3s1
1s1
1s2 2s2 2p6 3s2 3p6 3d10 4s1
1s2 2s2 2p6 3s2 3p8 3d10 4s2
The electron configurations for the ion Sn4+ is
[Kr] 4d10
[Kr] 4d10 5s1
[Ar] 4d10
1s2 2s2 2p6 3s2 3p6
If lead density is 11.36 g/cm3 and its molar weight is 207.19 g/mol, then the number of atoms per cubic centimeter in lead (Pb) is
3.3 × 1022
18 × 1012
6.02 × 1023
1.99 × 1020
Suppose an element has a valence of 2 and an atomic number of 27. Based only on the quantum numbers, how many electrons must be present in the 3d energy level?
4
5
6
7
8
Suppose an element has a valence of 2 and an atomic number of 48. This element is
Pd
Cd
Br
Pt
Electrical charge is transferred in metals by movement of valence electrons. How many potential charge carriers are there in an aluminum wire 1 mm in diameter and 100 m in length?
3.29 × 1022
8.12 × 1017
1.42 × 1023
Na
Calculate the force of attraction between a Ca2+ and an O2− ions the centers of which are separated by a distance of 1.25 nm.
5.89 × 10−10 kJ
5.89 × 10−10 C
5.89 × 10−10 N
5.89 × 10−10 eV
What type of bonding would be expected for solid xenon
Van der Waals
Ionic bond
Covalent bond
Metallic bond
Xenon bond
Potassium permanganate can be decomposed to potassium manganate and oxygen. Calculate the amount in grams of potassim permanganate required to get 2 liters of oxygen.
2.24 g
129.37 g
1 g
28.13 g
Russian vodka has 40% of alcohol in each volume unit. Calculate amount of water (in grams) and carbon dioxide (in liters) that could be obtained from alcohol distilled from 1 liter of vodka. Assume 100% distillation purity.
301.47 g / 289.15 l
289.15 g / 301.47 l
306.88 g / 369.90 l
369.90 g / 306.88 l
