The atomic number of an element is derived from

Write the complete symbol for the atom with the given atomic number $(Z)$ and atomic mass $(A)$:
$(i)$ $\quad Z=17, A=35$
$(ii)$ $\quad Z=92, A=233$
$(iii)$ $\quad Z=4, A=9$

Which of the following species are isoelectronic species? $(i)$ $O^{2-}$, $(ii)$ $F^{-}$, $(iii)$ $Na^{+}$, $(iv)$ $Mg^{2+}$

Assertion : Atoms are not electrically neutral.
Reason : Number of protons and electrons are different.

Identify the isoelectronic pair from the following.

What is the number of nucleons present in an atom having $29$ electrons and $34$ neutrons in it?