Question

Which phrase describes an atom?

(1) a positively charged electron cloud surrounding a positively charged nucleus
(2) a positively charged electron cloud surrounding a negatively charged nucleus
(3) a negatively charged electron cloud surrounding a positively charged nucleus
(4) a negatively charged electron cloud surrounding a negatively charged nucleus

Answer 1

"(3) a negatively charged electron cloud surrounding a positively charged nucleus" is the best option from the list, but of course the atom is more complicated than this.