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