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