Chemistry Practice Problems Periodic Table Practice Problems Solution: The radioactive element indicated on the following...

Solution: The radioactive element indicated on the following periodic table is used in smoke detectors.The black bar shown in rows six and seven indicate that the series below starts with the fourth element of each row respectively.Tell what kind of group it is in.

Problem
The radioactive element indicated on the following periodic table is used in smoke detectors.

The black bar shown in rows six and seven indicate that the series below starts with the fourth element of each row respectively.

Tell what kind of group it is in.

Solution

We have to determine what element is represented by the shaded box in the given periodic table.


The periodic table is an arrangement of electrons based on their electron configuration.

There are four blocks in the periodic table based on the orbital in which the valence electrons of an element are.


 

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