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