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