The atom questions | form five Chemistry

Calculate the wave number of the longest wavelength transition in Balmer series of hydrogen.

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UNSOLVED

State the following:

1. Postulates of Bohr`s atomic model
2. Shortcomings of Bohr`s atomic model.

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UNSOLVED

Define the following:

1. Principal quantum number.
2. Azimuthal quantum number.

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UNSOLVED

Given the quantum number, n=3. Answer the following questions:

1. List all possible orbitals present in this quantum energy.
2. Write possible values of m_l and m_s for this quantum number.

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UNSOLVED

The mass spectrum of an element enables the relative abundance of each isotope of the element be determined.  Data relating to mass spectrum of an element X whose atomic number is 35_z as indicated in the table below. Study the data and answer the questions that follows;

1. Define the term isotope.
2. Write the conventional symbols for the two isotopes of element X.
3. Calculate the relative atomic mass of X to three significant figures.

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UNSOLVED