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