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