
Grade 12Physical Chemistry
Imagine a universe in which the four quantum numbers
can have the same possible values as in our universe except
that the angular-momentum quantum number can have
integral values of 0, 1, 2, . . . , (instead of 0, 1, 2, . . . ,
).
(a) How many elements would be in the first two rows of
the periodic table in this universe?
(b) What would be the atomic number of the element in
the second row and fifth column?
Imagine a universe in which the four quantum numbers
can have the same possible values as in our universe except
that the angular-momentum quantum number can have
integral values of 0, 1, 2, . . . , (instead of 0, 1, 2, . . . ,
).
(a) How many elements would be in the first two rows of
the periodic table in this universe?
(b) What would be the atomic number of the element in
the second row and fifth column?
can have the same possible values as in our universe except
that the angular-momentum quantum number can have
integral values of 0, 1, 2, . . . , (instead of 0, 1, 2, . . . ,
).
(a) How many elements would be in the first two rows of
the periodic table in this universe?
(b) What would be the atomic number of the element in
the second row and fifth column?




