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