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