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