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