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