For the first one I got true, but it is the Atomic Mass Number, so check to see if it's right, I think it is the same thing, but don't count my word on it. :)
Second one is true: It's the nucleus
The Center of an Atom. The nucleus, that dense central core of the atom, contains both protons and neutrons. Electrons are outside the nucleus in energy levels. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. Have a good day, hope this helps. c;
