What is meant by the statement "Atoms are electrically neutral"?
atoms are said to be electrically neutral because in an atom there are same number of protons & electrons.
protons have the unit positive charge viz.+1.60210^-19 C.
electrons have the unit negative charge viz.-1.60210^-19.
since in an neutral atom there are same number of electrons & protons,hence atoms are electrically neutral.