Flash Cards

Use these to study for Test #2

Question Answer
The tiny building blocks of matter are? Atoms
What particle has a positive charge? Proton
What particle has a neutral or no charge? Neutron
What particle has a negative charge? Electron
How do you find the mass number or atomic mass number? Add the # of protons to the # of neutrons.
Where are the protons and neutrons located in an atom? In the nucleus.
Where are the electrons located in an atom? Orbiting around the atom outside the nucleus.
How do you find the atomic number? The # of protons.
The number of protons is equal to the number of ____________ in an atom? Electrons




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