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