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