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