A) 23 B) 60 C) 51 D) 50
A) 7 B) 3 C) 17 D) 1
A) 9 B) 45 C) 103 D) 5
A) 33 B) 4 C) 15 D) 3
A) Noble Gases B) Alkaline Earth Metals C) Alkaline Metals D) Halogens
A) 14.007 B) 7 C) 14 D) 2
A) 2 B) 137 C) 6 D) 56
A) 7 B) 2 C) 6 D) 1
A) Tellurium is a solid metalloid. B) Chlorine is a liquid non-metal. C) Phosphorus is a non-metal gas. D) Mercury is a solid metal.
A) 5 B) 6 C) 96 D) 42
A) 3 B) 7 C) 4 D) 2
A) Thomson B) Rutherford C) Dalton D) Bohr
A) Dalton B) Bohr C) Thomson D) Rutherford
A) Bohr B) Rutherford C) Thomson D) Dalton
A) Bohr B) Thomson C) Rutherford D) Dalton
A) Dalton, Thomson, Bohr, Rutherford B) Dalton, Rutherford, Thomson, Bohr C) Bohr, Rutherford, Dalton, Thomson D) Dalton, Thomson, Rutherford, Bohr
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 change B) chemical property C) physical property D) physical change
A) protons and electrons B) neutrons and electrons C) protons and orbits D) protons and neutrons
A) Carbon and Boron B) Mercury and Thallium C) Argon and Krypton D) Phosphorus and Silicon
A) Rutherford's Model B) Electron Cloud C) Dalton's Model D) Thomson's Model E) Bohr'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) nucleus D) region
A) Magnesium B) Lithium C) Beryllium D) Chlorine
A) State of Matter B) Number of Neutrons C) Period Number D) Group Number
A) period number B) number of protons C) number of neutrons 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) 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. |