A) 60 B) 51 C) 50 D) 23
A) 17 B) 3 C) 1 D) 7
A) 103 B) 45 C) 9 D) 5
A) 4 B) 33 C) 3 D) 15
A) Noble Gases B) Alkaline Earth Metals C) Alkaline Metals D) Halogens
A) 7 B) 14.007 C) 2 D) 14
A) 6 B) 2 C) 56 D) 137
A) 7 B) 1 C) 6 D) 2
A) Mercury is a solid metal. B) Chlorine is a liquid non-metal. C) Tellurium is a solid metalloid. D) Phosphorus is a non-metal gas.
A) 5 B) 96 C) 6 D) 42
A) 4 B) 7 C) 3 D) 2
A) Rutherford B) Dalton C) Bohr D) Thomson
A) Bohr B) Dalton C) Thomson D) Rutherford
A) Dalton B) Bohr C) Rutherford D) Thomson
A) Bohr B) Dalton C) Rutherford D) Thomson
A) Dalton, Rutherford, Thomson, Bohr B) Dalton, Thomson, Rutherford, Bohr C) Bohr, Rutherford, Dalton, Thomson D) Dalton, Thomson, Bohr, Rutherford
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 change D) physical property
A) protons and neutrons B) neutrons and electrons C) protons and orbits D) protons and electrons
A) Argon and Krypton B) Phosphorus and Silicon C) Mercury and Thallium D) Carbon and Boron
A) Dalton's Model B) Electron Cloud C) Thomson's Model D) Bohr's Model E) Rutherford'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) region C) period D) group
A) Chlorine B) Beryllium C) Magnesium D) Lithium
A) Number of Neutrons B) Period Number C) State of Matter D) Group Number
A) number of neutrons B) group number C) period number D) number of protons
A) the mass number minus the atomic number B) the same as the number of energy levels C) the same as the number of electrons D) greater than the mass number
A) Period Number B) State of Matter C) Number of Neutrons D) Group Number
A) Francium B) Nitrogen 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. |