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