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