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