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