Notice the three atomș given below:
` underset(17) overset(34) \Q , underset(16) overset (33)\ X , underset(17) overset(37)\Z`
a) Which are the isotopes among the following atoms.
b) Why?

Symbols (not real symbols) of some.atoms are given. underset(8) overset (17) \P ,underset(18) overset (40) \ Q, underset(8) overset (16) \R a) Find the atomic number and mass number of these elements. b) Which among these are isotopic pairs? c) Draw the Bohr model of atom Q.

Given below are the three isotopes of Hydrogen. underset(1) overset(1) \H, underset(1) overset(2) \H, underset(1) overset(3) \H(protium, Deuterium, Tritiüm) a) How do these differ in the subatomic particles present in them? b) Which isotopic of hydrogen is used in nuclear power plants?

A,B, C, D and E five elements (These symbols are not real? underset (7) overset (17)\ A ,underset(6) overset(16)\B, underset(7) overset(16 )\C, underset (8) overset (16) \D, underset(8) overset(17) \E a) Find out which among them are isotopes. b) Find out the number of neutrons in each one.

Symbols (not real symbols) of some atoms are given underset(8) overset (17) \ P , underset(18) overset (40)\Q , underset(8) overset (16) \ R , underset(20) overset (40)\S a) Find the atomic number and mass number of these elements . b) Which among these are isotopic pairs? c) Draw the Bohr model of atom Q

Find the atomic number of the atom which is given below. (16) overset(32) \A Underset

Symbols of certain elements are given. Write their electronic configuration and find the period and group to which they belong. a) overset(12) underset (6)\C ,b) overset(24) underset (12)\Mg , c) overset(35) underset (17)\Cl ,d) overset(27) underset (13)\Al ,e) overset(20) underset (11)\Na