An object is called negatively charged because
It contains only electrons
It contains only protons
It contains more electrons than protons
It contains more protons than electrons
An object contains both protons and electrons. It will become negatively charged when it gains electrons and contains more electrons than protons.
State whether the following statements are true or false :
(a) Thomson proposed that the nucleus of an atom contains protons and neutrons.
(b) The cathode rays obtained from all the gases consist of negatively charged particles called electrons.
(c) The anode rays obtained from all the gases consist of positively charged particles called protons.
What is the relationship between an atom containing 11 protons, 11 electrons and 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neutrons?