Notes from Atomic Structure Test

Notes from atomic Structure test:

The following are points that you need to clarify in order to improve your understanding and marks on this unit:

·      Copper has the electronic configuration of [Ar] 3d¹⁰ 4s¹ (remember also that Cr has a half filled d subshell)

·      Although the 4s orbital fills before the 3d. The 4s electrons are removed first.

·      The definition of RAM! The weighted average of an atom relative to a 1/12 of carbon-12

·      The sequence in a mass spectrometer is: vaporization, ionization, acceleration, deflection and detection

·      Acceleration is caused by a very high positive potential difference

·      Deflection is caused by an electromagnet around the main tube, causing the positive ions to move in a curved path

·      The amount of deflection depends on the mass to charge ratio (m/z). The higher the mass and lower the charge the bigger the m/z ratio and the less the deflection. The lower the m/z ratio, the smaller the mass and or the bigger the charge, the greater the deflection

·      Big jumps in ionization energy relate to breaking into the next quantum level. This value is much higher as its nearer the nucleus and the quantum level is full