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