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