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