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