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(2 points)
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Particles located outside of the nucleus with a tiny mass and a negative charge.

Particles located in the nucleus with a mass of 1 amu and a neutral charge.

Structure that contains most of the atom's mass and has a positive charge.

Particles in the outermost energy level that determine chemical reactivity.

Particles located in the nucleus with a mass of 1 amu and a positive charge; determine an element's identity.

Answers:
Valence Electrons

Nucleus

Electrons

Protons

Nuetrons

Electrons

match the four answers with questions

- Particles located outside of the nucleus with a tiny mass and a negative charge. (Electrons)

- Particles located in the nucleus with a mass of 1 amu and a neutral charge. (Neutrons)
- Structure that contains most of the atom's mass and has a positive charge. (Nucleus)
- Particles in the outermost energy level that determine chemical reactivity. (Valence Electrons)
- Particles located in the nucleus with a mass of 1 amu and a positive charge; determine an element's identity. (Protons)