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