A) 50 B) 60 C) 51 D) 23
A) 1 B) 3 C) 7 D) 17
A) 45 B) 9 C) 103 D) 5
A) 4 B) 33 C) 15 D) 3
A) Alkaline Metals B) Noble Gases C) Halogens D) Alkaline Earth Metals
A) 2 B) 14 C) 14.007 D) 7
A) 137 B) 56 C) 2 D) 6
A) 1 B) 7 C) 6 D) 2
A) Tellurium is a solid metalloid. B) Chlorine is a liquid non-metal. C) Mercury is a solid metal. D) Phosphorus is a non-metal gas.
A) 6 B) 96 C) 42 D) 5
A) 2 B) 4 C) 7 D) 3
A) Thomson B) Dalton C) Bohr D) Rutherford
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Dalton B) Bohr C) Rutherford D) Thomson
A) Thomson B) Rutherford C) Bohr D) Dalton
A) Dalton, Thomson, Rutherford, Bohr B) Dalton, Rutherford, Thomson, Bohr C) Dalton, Thomson, Bohr, Rutherford D) Bohr, Rutherford, Dalton, Thomson
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) chemical property C) physical change D) physical property
A) neutrons and electrons B) protons and orbits C) protons and neutrons D) protons and electrons
A) Carbon and Boron B) Argon and Krypton C) Mercury and Thallium D) Phosphorus and Silicon
A) Electron Cloud B) Rutherford's Model C) Dalton's Model D) Thomson's Model E) Bohr's Model
A) electrons orbit totally randomly around the nucleus B) the atom is mostly empty space C) the atom is a positively charged sphere with electrons embedded in it D) atoms are tiny solid spheres
A) group B) nucleus C) period D) region
A) Beryllium B) Magnesium C) Chlorine D) Lithium
A) Period Number B) Number of Neutrons C) State of Matter D) Group Number
A) number of neutrons B) period number C) number of protons D) group number
A) the same as the number of electrons B) greater than the mass number C) the mass number minus the atomic number D) the same as the number of energy levels
A) Period Number B) State of Matter C) Number of Neutrons D) Group Number
A) Carbon B) Manganese C) Nitrogen D) Francium
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. |