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