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