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