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