ASSIGNMENT
Our present knowledge of the atom shows that it is made up of three fundamental particles. Two of these particles carry charges while the third particle does not. Two of these particles are also located at the centre of the atom with the third particle revolving round the centre. i) Name these fundamental partcles. ii) Whch of these particles carry charges and what types of charges do they carry? iii) Which two particles are located at the centre? iv) What name do we give to this centre? v) Which particle revolves round the centre?