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