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