Chemistry
What is the relation between the number of protons and the number of electrons in an atom.
Related Questions
Write down :
(i) the mass number of the atom having 20 neutrons and 15 protons.
(ii) the number of neutrons in the nucleus of an atom having atomic number 17 and mass number 37.
What is a proton ? What is the significance of the number of protons found in the atoms of each of the different elements.
What would be the reason for an element to have atoms with differing mass numbers.
Copy and complete the following table relating to the atomic structure of some elements :
Element Atomic No. Mass No. No. of Protons No. of Neutrons No. of Electrons Beryllium 4 9 Fluorine 9 10 Sodium 12 11 Aluminium 27 13 Phosphorus 31 15