Question

How many orbitals does the fourth period have?

Answer 1

heya folk!!!!!

for fourth period all of these electrons build the third shell to a maximum of 18 electrons. Remember that the first eight were placed during our trip through the third period/row. The fourth row of the periodic table has transition metals ranging from scandium (21) to zinc (30).

Answer 2

Hello friend !!!

Here's the answer you are looking for

Fourth period means the principal quantum number is 4 i.e there are 4 shells in the elements of the 4th period.

Till 4th shells, the sub shells are

1s 2s 2p 3s 3p 3d 4s 4p 4d 4f

s sub shell contains 1 orbital
P sub shell contains 3 orbitals
d sub shell contains 5 orbitals
and f sub shell contains 7 orbitals.

So 1s has 1 orbital
2s has 1 orbital
2p has 3 orbitals
3s has 1 orbital
3p has 3 orbitals
3d has 5orbitals
4s has 1 orbital
4p has 3 orbitals
4d has 5 orbitals
and 4f has 7 orbitals

So total number of orbitals in elements of 4th period is 30.

So the answer is 30


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