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