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