A) 23 B) 50 C) 51 D) 60
A) 1 B) 7 C) 17 D) 3
A) 5 B) 9 C) 45 D) 103
A) 33 B) 3 C) 4 D) 15
A) Noble Gases B) Alkaline Metals C) Halogens D) Alkaline Earth Metals
A) 2 B) 14.007 C) 14 D) 7
A) 137 B) 2 C) 6 D) 56
A) 1 B) 2 C) 7 D) 6
A) Phosphorus is a non-metal gas. B) Mercury is a solid metal. C) Chlorine is a liquid non-metal. D) Tellurium is a solid metalloid.
A) 96 B) 6 C) 5 D) 42
A) 4 B) 3 C) 7 D) 2
A) Bohr B) Dalton C) Rutherford D) Thomson
A) Thomson B) Bohr C) Dalton D) Rutherford
A) Bohr B) Thomson C) Rutherford D) Dalton
A) Rutherford B) Thomson C) Bohr D) Dalton
A) Dalton, Thomson, Rutherford, Bohr B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Rutherford, Thomson, Bohr
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 property C) physical change D) chemical change
A) protons and electrons B) neutrons and electrons C) protons and neutrons D) protons and orbits
A) Phosphorus and Silicon B) Carbon and Boron C) Mercury and Thallium D) Argon and Krypton
A) Dalton's Model B) Thomson's Model C) Rutherford's Model D) Electron Cloud E) Bohr'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) region C) nucleus D) group
A) Lithium B) Beryllium C) Chlorine D) Magnesium
A) Period Number B) Number of Neutrons C) Group Number D) State of Matter
A) group number B) number of protons C) number of neutrons D) period number
A) the mass number minus the atomic number B) the same as the number of electrons C) greater than the mass number D) the same as the number of energy levels
A) Number of Neutrons B) Period Number C) State of Matter D) Group Number
A) Francium B) Manganese C) Carbon D) Nitrogen
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons. |