Consider the following statements.
(I) Element with atomic number $43$ belongs to $d-$block.
(II) ${}_{64}Gd$ is present in group $3$.
(III) Se has two unpaired electrons in p-subshell.
The correct statement(s) is/are

Q. Element 'A' (with minimum atomic number) in which last electron has n+m>3 but divisible by 3. How many given statements are correct about A? (n=Principal quantum number, m=magnetic quantum number) (i) Sum of group number and period number (in Modern Periodic table) is even number. (ii) Element belongs to s-block (iii) Element belongs to IIIA group number (iv) Element is a metal (v) Atomic number of element is divisible by 3. (vi) Another element B has an atomic number=atomic number of A+10, then element B belongs to IIIB group (vii) Element A has largest radius in their period. (viii) The group in which element is present, has maximum elements in the Modern Periodic Tab

Q. 43 The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is (1)2 (2)3 (3)4 (4)1

Q. how many unpaired electrons are present in the element with atomic number 24.

Q. Element P has atomic number 19. To which group does P belongs to ?

Q. An element belongs to group 17 it is present in third period and its atomic number is 17 What is the atomic number of the element belonging to same group and present in fifth period ?