ELI5 version, why doesnt an elephant fall into a mouse? because the elephant wavelength is too long to fit inside the mouse, so it nestles around the mouse at S

ELI5 version, why doesnt an elephant fall into a mouse? because the elephant wavelength is too long to fit inside the mouse, so it nestles around the mouse at S1 orbit. so, why doesnt an electron fall into a nucleus? because the nucleus is too small to encompass an electron wave.