A) 50 B) 51 C) 60 D) 23
A) 17 B) 7 C) 3 D) 1
A) 103 B) 5 C) 9 D) 45
A) 3 B) 4 C) 33 D) 15
A) Halogens B) Noble Gases C) Alkaline Earth Metals D) Alkaline Metals
A) 2 B) 14.007 C) 7 D) 14
A) 2 B) 56 C) 6 D) 137
A) 1 B) 6 C) 2 D) 7
A) Mercury is a solid metal. B) Tellurium is a solid metalloid. C) Chlorine is a liquid non-metal. D) Phosphorus is a non-metal gas.
A) 96 B) 6 C) 42 D) 5
A) 4 B) 2 C) 3 D) 7
A) Rutherford B) Bohr C) Dalton D) Thomson
A) Rutherford B) Bohr C) Thomson D) Dalton
A) Dalton B) Bohr C) Rutherford D) Thomson
A) Dalton B) Rutherford C) Thomson D) Bohr
A) Dalton, Rutherford, Thomson, Bohr B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Thomson, Rutherford, Bohr
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 change B) physical change C) chemical property D) physical property
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) Phosphorus and Silicon D) Argon and Krypton
A) Rutherford's Model B) Electron Cloud C) Bohr's Model D) Thomson's Model E) Dalton's Model
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) nucleus B) group C) region D) period
A) Chlorine B) Magnesium C) Beryllium D) Lithium
A) Group Number B) Period Number C) Number of Neutrons D) State of Matter
A) number of protons B) number of neutrons C) period number D) group number
A) the mass number minus the atomic number B) the same as the number of electrons C) greater than the mass number D) the same as the number of energy levels
A) Number of Neutrons B) Group Number C) Period Number D) State of Matter
A) Francium B) Carbon 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. |