What are transition elements? Which of the following are not transition elements?

$\mathrm{Cu} (\mathrm{Z}=29), \mathrm{S} (\mathrm{Z}=16), \mathrm{Ga} (\mathrm{Z}=31), \mathrm{Pd} (\mathrm{Z}=46) \mathrm{and} \mathrm{U} (\mathrm{Z}=92)$
 

Locate each of the following elements on the periodic table and identify each of them.

$\left[\mathrm{Ar}\right]3{\mathrm{d}}^{7}4{\mathrm{s}}^2$

Locate each of the following elements on the periodic table and identify each of them.

$\left[\mathrm{Ar}\right]3{\mathrm{d}}^{5}4{\mathrm{s}}^1$

Locate each of the following elements on the periodic table and identify each of them.

$\left[\mathrm{Kr}\right]4{\mathrm{d}}^{2}5{\mathrm{s}}^2$

Locate each of the following elements on the periodic table and identify each of them.

$\left[\mathrm{Xe}\right]4{\mathrm{f}}^{3}6{\mathrm{s}}^2$

Write the name and deduce the atomic numbers of the following atoms,

The fourth alkali metal.

Write the name and deduce the atomic numbers of the following atoms, Second transition element.

Write the name and deduce the atomic numbers of the following atoms,

The fourth noble gas.

Write the name and deduce the atomic numbers of the following atoms,

Fourth element in the second period.