= O CHEMISTRY OF THE ELEMENTS Understanding the exceptional electron configurations in the fir... In Universe L., recently discovered by an intrepid team of chemists who also happen to have studied interdimensional travel, quantum mechanics works just as it does in our universe, except that there are four d orbitals instead of the usual number we observe here. Use these facts to write the ground-state electron configurations of the third and fourth elements in the first transition series in Universe L. Note: you may use [X] to stand for the electron configuration of the noble gas at the end of the row before the first transition series. third transition metal: fourth transition metal: 0 X S Amina 35 dh 2

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Write the complete electron configuration for F. Quantity of electrons enclose in brackets (for example 1s(2)2s(2) etc.)

Given the valence electron orbital level diagram and the description, identify the element or ion.

In Universe L, recently discovered by an intrepid team of chemists who also happen to have studied interdimensional travel, quantum mechanics works just as it does in our universe, except that there are four d orbitals instead of the usual number we observe here. Use these facts to write the ground-state electron configurations of the seventh and eighth elements in the first transition series in Universe L. Note: you may use [X] to stand for the electron configuration of the noble gas at the end of the row before the first transition series. seventh transition metal: eighth transition metal:

3. а. Label the s, p, d and f blocks in the Table below. After the f orbitals would come the g orbitals. If, after the f'block there was a g block, how many elements wide would it be? Briefly explain. b. For a number of the elements, there are similarities between the properties of elements that are diagonally positioned in the Table, such as Na and Ca. Why do you think that is? с. Element 87 is marked in the Table. Predict some of its properties based just upon it's position in the Table. d.