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