A) 60 B) 51 C) 23 D) 50
A) 1 B) 3 C) 7 D) 17
A) 103 B) 45 C) 9 D) 5
A) 3 B) 4 C) 15 D) 33
A) Halogens B) Alkaline Earth Metals C) Alkaline Metals D) Noble Gases
A) 2 B) 14.007 C) 7 D) 14
A) 6 B) 56 C) 2 D) 137
A) 1 B) 6 C) 2 D) 7
A) Chlorine is a liquid non-metal. B) Tellurium is a solid metalloid. C) Mercury is a solid metal. D) Phosphorus is a non-metal gas.
A) 96 B) 5 C) 42 D) 6
A) 4 B) 2 C) 7 D) 3
A) Rutherford B) Bohr C) Thomson D) Dalton
A) Rutherford B) Bohr C) Thomson D) Dalton
A) Rutherford B) Thomson C) Dalton D) Bohr
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Dalton, Thomson, Bohr, Rutherford B) Dalton, Thomson, Rutherford, Bohr C) Dalton, Rutherford, Thomson, Bohr D) Bohr, Rutherford, Dalton, Thomson
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) physical property B) chemical change C) chemical property D) physical change
A) protons and electrons B) neutrons and electrons C) protons and orbits D) protons and neutrons
A) Argon and Krypton B) Mercury and Thallium C) Carbon and Boron D) Phosphorus and Silicon
A) Dalton's Model B) Thomson's Model C) Electron Cloud D) Rutherford's Model E) Bohr'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) nucleus B) region C) group D) period
A) Magnesium B) Lithium C) Beryllium D) Chlorine
A) Period Number B) Number of Neutrons C) Group Number D) State of Matter
A) number of protons B) group number C) period number D) number of neutrons
A) the same as the number of energy levels B) greater than the mass number C) the same as the number of electrons D) the mass number minus the atomic number
A) Period Number B) Number of Neutrons C) Group Number D) State of Matter
A) Carbon B) Francium 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. |