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