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