I've always considered lenses of less than 35 mm "wide-angle". It's a matter of degree, but I would consider 28mm a wide angle lens. Since around 50mm is "standard" focal length, it is quite a bit wider than that.
Short answer is no. It's a standard 28mm lens. 22mm-24mm are usually designated wide angle. Usually you have to give up some zoom or other things when you when you get to extremes (wide angle) as no lens (variable zoom) can do everything.
The standard lens zooms from a fairly wide field of vision to a moderate zoom. You can buy an accessory which adds to the zoom, but I don't think anything can be bought to expand the field of vision. I hope this is helpful
I go back long enough to have the oldtimer's view to this answer. Yes, a 28mm (equivalent to 35mm film cams) IS a "wide angle", not ultra-wide, but wider than "normal", which I've always considered 50mm. 24mm would be better, but its 28mm ":^) The real question is, "Can you live with a 28mm & 5x that (140mm)?" Do some research and see. dpreview.com