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