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