Atomic mass Cu = 63.546 a.m.u
63.546 g ---------------- 6.02x10²³ atoms
22 g --------------------- ??
22 x (6.02x10²³ ) / 63.546 => 2.08x10²³ atoms
hope this helps!
B. (twenty characters blah blah blah) Have a great day/night!
Not necessarily, rain needs some mechanism such as instability of vertical air movement..
