We have to determine how many protons, neutrons, and electrons 1H35Cl contains.
Recall that the symbol of an element is written is this way:
Atomic number (Z):
• represents the identity of the element
• reveals the number of protons
• in a neutral element:
number of protons = number of electrons
Mass number (A)
• reveals the number of protons and neutrons
Hydrogen has three isotopes (1H, 2H, and 3H), and chlorine has two isotopes (35Cl and 37Cl).
Tell how many protons, neutrons, and electrons 1H35Cl contains.