Chapter 11 Vocabulary Crossword

the smallest unit of an element that maintains the chemical properties of that element
the mass of an atom expressed in atomic mass units
a unit that describes the mass of an atom
the number of protons in the nucleus of an atom
subatomic particle that has a negative charge
a region around the nucleus of an atom where electrons are likely to be found
subatomic particle found in the nucleus with a positive charge
subatomic particle found in the nucleus with no charge
an atom's central region made of protons and neutrons
an atom that has the same number of protons as other atoms of the same element but a different number of neutrons
the sum of the number of protons and neutrons in the nucleus of an atom
the interaction that binds nucleons together in a nucleus
force that pulls objects towards each other
force that causes objects of the same charge to repel and objects with different charges to attract
force that plays a key role in the transformation of a neutron into a proton in an unstable atom