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