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