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