Question

1. Write the characteristics of electron, proton and neutron. The nucleus of an element consists of 92 protons and 146 neutrons. Calculate its atomic number and mass number.​

Answer 1

Answer:Hope that this may help you

1 . look at the attachment

2.mass number = no of protons + no of electrons=92+146=238

 atomic number = no of protons= no of electrons=92

Answer 2

• Electron is a negatively charged particle which revolves around the nucleus of an atom. The number of electron is equal to the number of proton.
• Proton is a positively charged species of nucleus.
• Neutron is a neutral species resides at nucleus of an atom.
• Mass number is a sum of number of protons and number of neutrons. So, Mass number will be 92+146=238.
• Atomic number is equal to number of electrons which is equal to number of protons. So, atomic number will be 92.