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