Atoms and Molecules

Question Answer
Unchanged particle in the nucleus of an atom is neutron
Positively Charged particle in the nucleus proton
The number of protons in the nucleus atomic number
Region surrounding the atom's nucleus where electrons are found electron cloud
Where is the most mass in an atom found nucleus
The nucleus contains particles called neutrons and protons
A negatively charged particle in an atom electron
The electron cloud holds how many _______ in each ring 8 electrons
The nucleus has a ________ charge positive
The modern model of an atom is called the (electron-cloud/ nucleus-orbit) model electron-cloud
Electrons that are closer to the nucleus have ______energy than others farther away less

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