The atom questions | form five Chemistry

State the following :

1. Pauli`s exclusion principle.
2. Aufbau building principle.
3. Hund`s rule of maximum multiplicity.
4. Half-filled and full-filled orbital rule.

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UNSOLVED

Write down the electronic configuration of each of the following species using orbtal diagrams:

1. Cl^-
2. K
3. Ca²⁺
4. F

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UNSOLVED

Element Z occurs naturally as a mixture of ⁶⁹Z and ⁷¹Z.

1. Briefly explain the sisgnificance of the numbers 69 and 71 and give a term which describes these two components in the natural element.
2. If ⁶⁹Z and ⁷¹Z have relative atomic mass of 69.8, find the percentages of ⁶⁹Z and ⁷¹Z in a sample of Z.

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UNSOLVED

Write the atomic number of an atom with electronic configuration of 1s² 2s² 2p⁶ 3s² 3p⁵ .

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UNSOLVED

X occurs naturally as ³⁷X and ³⁵X. Given that the relative atomic mass of X is 35.5, determine the percentage of ³⁷X and ³⁵X in the sample of element X.

Answer / Solution

UNSOLVED