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