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Chapter 5 Vocabulary

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Across
A visual representation of the chemical elements, ordered by atomic number, electron configuration, and chemical properties
A hydrogen atom with 1 proton and 1 neutron
The identity of an atom such as hydrogen, carbon, or iron
An atom or molecule that has a + or - charge
The mass of a proton or a neutron
Atoms that have the same number of protons but different numbers of neutrons
Down
The mass of a mole of particular molecules
Particles of an atom that are outside of the nucleus of an atom and have a charge of minus one and negligible mass
Number of protons in an atom that establishes the identity of an element
Hydrogen atom with 1 proton and 2 neutrons with an atomic mass of 3 amu
Particles of an atom that are within the nucleus of an atom and have a zero charge and mass of 1 atomic mass unit
Particles of an atom that are within the nucleus of an atom and have a charge of plus on and a mass of 1 atomic mass unit