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