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