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