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structure of the atom

Teacher: kayli stewart
Across
Makes up protons and neutrons
Key role in radioactive decay
Total number of protons and neutrons in a nucleolus
The number of protons and neutrons in an atom
Contains equal number of protons but not nrutrons
Causes interaction between electrically charged particles
Molecule with net electric charge due to gain or loss of electrons
Center of proton and neutron grouped together to form nucleolus
Down
The amount of gravity between two objects
The unite of mass to express atomic molecules weights
No electric charge
Holds atomic nucleus together
Smallest unit of matter broken down equally
Positively charged
The mass of an atom
Negatively charged
Air like fluid substance