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