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