A) 51 B) 50 C) 60 D) 23
A) 3 B) 7 C) 1 D) 17
A) 103 B) 45 C) 9 D) 5
A) 15 B) 4 C) 3 D) 33
A) Alkaline Metals B) Alkaline Earth Metals C) Halogens D) Noble Gases
A) 7 B) 2 C) 14.007 D) 14
A) 56 B) 2 C) 6 D) 137
A) 6 B) 2 C) 1 D) 7
A) Chlorine is a liquid non-metal. B) Tellurium is a solid metalloid. C) Phosphorus is a non-metal gas. D) Mercury is a solid metal.
A) 96 B) 6 C) 42 D) 5
A) 3 B) 7 C) 2 D) 4
A) Rutherford B) Dalton C) Thomson D) Bohr
A) Dalton B) Rutherford C) Thomson D) Bohr
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Bohr B) Rutherford C) Thomson D) Dalton
A) Dalton, Rutherford, Thomson, Bohr B) Dalton, Thomson, Rutherford, Bohr C) Bohr, Rutherford, Dalton, Thomson D) Dalton, Thomson, Bohr, Rutherford
A) proton = positive, neutron = negative, electron = no charge B) proton = positive, electron = neutral, neutron = negative C) proton = positive, electron = negative, neutron = uncharged D) proton = negative, electron = positive, neutron = no charge
A) chemical property B) physical property C) physical change D) chemical change
A) protons and electrons B) neutrons and electrons C) protons and neutrons D) protons and orbits
A) Argon and Krypton B) Phosphorus and Silicon C) Carbon and Boron D) Mercury and Thallium
A) Thomson's Model B) Bohr's Model C) Rutherford's Model D) Dalton's Model E) Electron Cloud
A) atoms are tiny solid spheres B) the atom is a positively charged sphere with electrons embedded in it C) electrons orbit totally randomly around the nucleus D) the atom is mostly empty space
A) period B) nucleus C) group D) region
A) Chlorine B) Beryllium C) Lithium D) Magnesium
A) Group Number B) Number of Neutrons C) State of Matter D) Period Number
A) period number B) number of protons C) number of neutrons D) group number
A) the mass number minus the atomic number B) greater than the mass number C) the same as the number of energy levels D) the same as the number of electrons
A) State of Matter B) Number of Neutrons C) Group Number D) Period Number
A) Francium B) Manganese C) Carbon D) Nitrogen
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons. |