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