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