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