Question Text
Question 3 :
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutron is 14. What is the number of electron in the ion.
Question 5 :
An atom having 3 proton and 4 neutron has a valency of
Question 6 :
How many electtons are present in M-shell of an element with atomic nimber 20
Question 9 :
the maximum number of electron in a shell is given by the formula
Question 14 :
what was the source of Alpha particles in the experiment of rutherford's Alpha particle scattering experiment
Question 15 :
what property of an element discovered the behaviour of that element
Question 18 :
The orbit for shelves in which electron revolve around an atom are called
Question 22 :
How many maximum electrons can be occur paid in k shell
Question 23 :
how many electrons are present in the outermost shell of aluminium metal
Question 24 :
the electron present in the outermost shell of an atom are called
Question 27 :
an atom has 3 proton and 4 neutron the valency of that atom is
Question 28 :
the atomic number of an element having mass number 23 and number of neutrons 12 is is