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