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