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