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