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