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