Questions in atomic-structure

Select	Question
	The atomic number of an element represents
	An atom has $26$ electrons and its atomic weight is $56$. The number of neutrons in the nucleus of the atom will be
	The most probable radius (in pm) for finding the electron in $H{e^ + }$ is
	The number of unpaired electrons in the $F{e^{2 + }}$ ion is
	A sodium cation has different number of electrons from
	An atom which has lost one electron would be
	Number of electrons in the outermost orbit of the element of atomic number 15 is
	The atomic weight of an element is double its atomic number. If there are four electrons in $2p$ orbital,the element is
	An atom has the electronic configuration of $1{s^2},2{s^2}2{p^6}$,$3{s^2}3{p^6}3{d^{10}},4{s^2}4{p^5}$. Its atomic weight is $80$. Its atomic number and the number of neutrons in its nucleus shall be
	Which of the following particles has more electrons than neutrons