Question

A. Choose the correct option. 1.______ are the subatomic particles that determine which element an atom is. a) Electrons b) Protons c) Neutrons d) Ions​

Answer 1

1. Protons are the subatomic particles that determine which element an atom is.

• The number of protons present in the nucleus helps in determining the atomic number of an element which therefore determines which element an atom is .
• Each element is represented by a unique number which is equivalent to number of protons present inside it .
• It is represented by the letter 'Z'.
• The number of electrons can also be used to determine but only in the case of neutral atom. Hence, it's not exactly the proper way to determine which element an atom is.
• Hence , option b) Protons is correct.