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