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