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