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