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