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