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