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