A) 60 B) 23 C) 50 D) 51
A) 7 B) 17 C) 3 D) 1
A) 45 B) 5 C) 103 D) 9
A) 15 B) 3 C) 33 D) 4
A) Halogens B) Alkaline Earth Metals C) Noble Gases D) Alkaline Metals
A) 7 B) 14.007 C) 14 D) 2
A) 6 B) 56 C) 2 D) 137
A) 1 B) 2 C) 6 D) 7
A) Mercury is a solid metal. B) Tellurium is a solid metalloid. C) Phosphorus is a non-metal gas. D) Chlorine is a liquid non-metal.
A) 5 B) 6 C) 42 D) 96
A) 2 B) 3 C) 4 D) 7
A) Rutherford B) Dalton C) Thomson D) Bohr
A) Rutherford B) Dalton C) Thomson D) Bohr
A) Bohr B) Dalton C) Thomson D) Rutherford
A) Bohr B) Dalton C) Rutherford D) Thomson
A) Dalton, Rutherford, Thomson, Bohr B) Bohr, Rutherford, Dalton, Thomson 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) physical property B) chemical property C) physical change D) chemical change
A) protons and orbits B) neutrons and electrons C) protons and electrons D) protons and neutrons
A) Mercury and Thallium B) Carbon and Boron C) Argon and Krypton D) Phosphorus and Silicon
A) Rutherford's Model B) Bohr's Model C) Electron Cloud D) Thomson's Model E) Dalton's Model
A) atoms are tiny solid spheres B) the atom is a positively charged sphere with electrons embedded in it C) electrons orbit totally randomly around the nucleus D) the atom is mostly empty space
A) group B) period C) region D) nucleus
A) Magnesium B) Chlorine C) Beryllium D) Lithium
A) State of Matter B) Period Number C) Number of Neutrons D) Group Number
A) group number B) period number C) number of neutrons D) number of protons
A) the same as the number of energy levels B) the same as the number of electrons C) the mass number minus the atomic number D) greater than the mass number
A) Period Number B) Number of Neutrons C) Group Number D) State of Matter
A) Carbon B) Francium 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. |