Responde verdadero (V) o falso (F) según corresponde e) Las partículas que se encuentran en el núcleo del átomo se denominan protones y neutrones.
f) El número atómico indica el número de protones que hay en el núcleo del átomo.
g) Los átomos que tienen igual número de protones y distinto número de neutrones se llaman isotopos

where's the diagram?

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.