Which of the following particles are subatomic particles? 1. Electron 2. Proton 3. Neutron 4. Muon Select the correct answer from code given below.

For an element with atomic number 35, which one of the following will be the correct number of electrons in its valence shell based on Bohr’s model of an atom?

Which one of the following statements about the properties of neutrons is not correct?

What is the mass number of an element, the atom of which contains two protons, two neutrons and two electrons?

Which of the following statements are incorrect about the structure of an atom? (i) The atom as a whole is neutral. (ii) The atom is an indivisible particle. (iii) The whole mass of an atom is concen…

The mass number of argon is 40. Which one of the following statements is correct?