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