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