CHEM1001 - Chemistry Properties and Energetics 

Assignment Task 

Questions 

1. What is the value for The Orbital?

1. 4

2. 5

3. 6

4. 3

2. Which Of the Elements or ions below has the Following Orbital box diagram?

1. Zn

2. Cd

3. Sn2+

4. Xe

3. Match the following electron configurations to the correct atoms or ions?

1. 1s²2^s22p⁶

2. 1s²2s²2p⁶3^s2³p⁶4^s1

3. 1^s22^s22^p1

4. 1^s22^s22p⁶3^s23p⁶3^d84^s2

4. Using the Vsepr theory, predict the molecular structure of the following molecule?

1. Trigonal pyramidal 

2. Non linear shaped 

3. Tetrahedral

4. octahedral 

5. Which of the following cations has the greatest Charge density?

1. Fr+

2. Cs+

3. K+

4. Rb+

6. In Which of the Following does chlorine have the highest oxidation number?

1. Clo4

2. Cacl2

3. Cl2

4. Hcl

7. What are the commonly available oxidation States of nitrogen?

1. -3 and +5

2. Nitrogen is an inert gas and can not be oxidised easily?

3. -3 and +3

4. +3 and +5

8. Which of the following pairs of elements form the most covalent bonds?

1. Na and Cl

2. Na and I 

3. Na and F

4. Na and Br

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