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