Protons, Neutrons and Electrons Crossword Puzzle

QUESTIONS LIST:

• atomic number: this is determined by how many protons or electrons are in an atom
• electron: the part of the atom with a negative charge that circles around the atom
• mass: the _ of an atom is decided by how many protons and neutrons are in its nucleus
• nucleons: what are both protons and neutrons are referred to as?
• one atomic unit: the mass of a proton and a neutron
• neutral: what is the charge of a neutron?
• atom: what makes up all of existence?
• protons: what is part of the nucleus with a positive charge?
• nucleus: the center of the atom containing its protons and neutrons
• negative: what is the charge of an electron?
• neutron: the part of the nucleus with no charge
• positive: what is charge of a proton?