A) 50 B) 60 C) 23 D) 51
A) 7 B) 1 C) 17 D) 3
A) 45 B) 103 C) 5 D) 9
A) 3 B) 15 C) 4 D) 33
A) Alkaline Earth Metals B) Alkaline Metals C) Halogens D) Noble Gases
A) 14 B) 14.007 C) 2 D) 7
A) 6 B) 56 C) 2 D) 137
A) 1 B) 6 C) 7 D) 2
A) Chlorine is a liquid non-metal. B) Mercury is a solid metal. C) Tellurium is a solid metalloid. D) Phosphorus is a non-metal gas.
A) 5 B) 42 C) 96 D) 6
A) 2 B) 4 C) 7 D) 3
A) Rutherford B) Bohr C) Thomson D) Dalton
A) Rutherford B) Bohr C) Dalton D) Thomson
A) Rutherford B) Bohr C) Thomson D) Dalton
A) Rutherford B) Thomson 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) physical change B) physical property C) chemical property D) chemical change
A) neutrons and electrons B) protons and orbits C) protons and neutrons D) protons and electrons
A) Mercury and Thallium B) Phosphorus and Silicon C) Argon and Krypton D) Carbon and Boron
A) Rutherford's Model B) Electron Cloud C) Dalton's Model D) Thomson's Model E) Bohr's Model
A) the atom is mostly empty space B) atoms are tiny solid spheres C) electrons orbit totally randomly around the nucleus D) the atom is a positively charged sphere with electrons embedded in it
A) region B) group C) nucleus D) period
A) Beryllium B) Lithium C) Chlorine D) Magnesium
A) State of Matter B) Period Number C) Group Number D) Number of Neutrons
A) period number B) number of protons C) number of neutrons D) group number
A) the same as the number of electrons B) the same as the number of energy levels C) the mass number minus the atomic number D) greater than the mass number
A) Period Number B) Number of Neutrons C) State of Matter D) Group Number
A) Francium B) Nitrogen C) Carbon D) Manganese
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. |