1) The particles in an atom that are neutral and have no charge. a) Protons b) Neutrons c) Electrons 2) What do call the central region of an atom where neutrons and protons are located? a) Energy level b) Nucleus c) Core 3) The positively charged particles of an atom. a) Protons b) Eletrons c) Neutrons 4) The smallest unit of matter. a) Energy levels b) Atom c) Molecule 5) Electrons have what type of charge? a) No charge b) Negative c) Positive 6) Most of the mass in an atom is concentrated in the... a) Nucleus b) Energy Level c) Electron cloud 7) What does the nucleus consist of? a) Electron and proton b) Neutrons and Electrons c) Protons and Neutrons 8) What are the 3 particles that make-up an atom? a) protons, neutrons, and isotopes b) positive, negative and electrons c) protons, electrons and neutrons 9) An electron has a greater mass than a proton. a) True b) False 10) Subatomic particles are found inside atoms. a) True b) False 11) Protons have a negative charge. a) True b) False 12) Protons and neutrons are part of the nucleus. a) True b) False 13) Electrons have a positive charge. a) True b) False 14) The Greek word "atomos" means... a) Uncuttable b) Divisible c) Invisible 15) Electrons are found... a) In the nucleus b) Outside the nucleus c) Anywhere 16) The overall charge of an atom is... a) positive b) negative c) neutral 17) Everything around us is made up of... a) stuff b) matter c) air 18) Matter - a) has mass and takes up space b) has stuff c) is only solids 19) The neutrons... a) help the electrons outside the nucleus b) help keep the nucleus together 20) Static electricity is a build up of... a) protons b) neutrons c) electrons

Atoms Review

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