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