A) 60 B) 51 C) 23 D) 50
A) 3 B) 7 C) 1 D) 17
A) 45 B) 9 C) 103 D) 5
A) 15 B) 33 C) 4 D) 3
A) Alkaline Metals B) Noble Gases C) Halogens D) Alkaline Earth Metals
A) 14 B) 7 C) 2 D) 14.007
A) 2 B) 137 C) 56 D) 6
A) 7 B) 6 C) 2 D) 1
A) Chlorine is a liquid non-metal. B) Tellurium is a solid metalloid. C) Phosphorus is a non-metal gas. D) Mercury is a solid metal.
A) 96 B) 42 C) 5 D) 6
A) 4 B) 7 C) 3 D) 2
A) Dalton B) Rutherford C) Thomson D) Bohr
A) Rutherford B) Bohr C) Dalton D) Thomson
A) Rutherford B) Thomson C) Bohr D) Dalton
A) Thomson B) Dalton C) Bohr D) Rutherford
A) Bohr, Rutherford, Dalton, Thomson B) Dalton, Thomson, Rutherford, Bohr C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Rutherford, Thomson, Bohr
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) chemical change B) physical property 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) Mercury and Thallium D) Phosphorus and Silicon
A) Thomson's Model B) Bohr's Model C) Dalton's Model D) Electron Cloud E) Rutherford's Model
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) period B) nucleus C) group D) region
A) Chlorine B) Magnesium C) Lithium D) Beryllium
A) Period Number B) State of Matter C) Number of Neutrons D) Group Number
A) period number B) number of protons C) number of neutrons D) group number
A) the same as the number of electrons B) the mass number minus the atomic number C) greater than the mass number D) the same as the number of energy levels
A) Group Number B) Number of Neutrons C) Period Number D) State of Matter
A) Francium B) Nitrogen C) Manganese D) Carbon
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons. |