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